Grandstream Networks GRP2612W User manual

Grandstream Networks, Inc.
GRP261x/GRP2624/GRP2634
Carrier-Grade IP Phones
User Guide

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GRP261X /GRP2624/GRP2634 User Guide
Version 1.0.5.48
COPYRIGHT
©2021 Grandstream Networks, Inc. https://www.grandstream.com
All rights reserved. Information in this document is subject to change without notice. Reproduction or
transmittal of the entire or any part, in any form or by any means, electronic or print, for any purpose without
the express written permission of Grandstream Networks, Inc. is not permitted.
The latest electronic version of this guide is available for download here:
https://www.grandstream.com/support
Grandstream is a registered trademark and Grandstream logo is trademark of Grandstream Networks, Inc.
in the United States, Europe and other countries.
CAUTION
Changes or modifications to this product not expressly approved by Grandstream, or operation of this
product in any way other than as detailed by this guide, could void your manufacturer warranty.
WARNING
Please do not use a different power adaptor with devices as it may cause damage to the products and void
the manufacturer warranty.

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GRP261X /GRP2624/GRP2634 User Guide
Version 1.0.5.48
U.S. FCC Part 68 Regulatory Information
This equipment complies with Part 68 of the FCC rules. Located on the equipment is a label that contains,
among other information, the ACTA registration number and ringer equivalence number (REN). If requested,
this information must be provided to the telephone company.
The REN is used to determine the quantity of devices which may be connected to the telephone line.
Excessive REN’s on the telephone line may result in the devices not ringing in response to an incoming
call. In most, but not all areas, the sum of the REN’s should not exceed five (5.0). To be certain of the
number of devices that may be connected to the line, as determined by the total REN’s contact the
telephone company to determine the maximum REN for the calling area.
This equipment cannot be used on the telephone company-provided coin service. Connection to Party Line
Service is subject to State Tariffs.
If this equipment causes harm to the telephone network, the telephone company will notify you in advance
that temporary discontinuance of service may be required. If advance notice isn’t practical, the telephone
company will notify the customer as soon as possible. Also, you will be advised of your right the file a
complaint with the FCC if you believe it is necessary.
The telephone company may make changes in its facilities, equipment, operations, or procedures that could
affect the operation of the equipment. If this happens, the telephone company will provide advance notice
in order for you to make the necessary modifications in order to maintain uninterrupted service.
If trouble is experienced with this equipment, please contact (Agent in the US):
Company Name: Grandstream Networks, Inc.
Address: 126 Brookline Ave, 3rd Floor Boston, MA 02215, USA
Tel: [phone]
Fax: [phone]
If the trouble is causing harm to the telephone network, the telephone company may request you to remove the
equipment from the network until the problem is resolved.
This equipment uses the following USOC jacks: RJ45C.
It is recommended that the customer install an AC surge arrester in the AC outlet to which this device is
connected. This is to avoid damaging the equipment caused by local lightning strikes and other electrical
surges.
Since this device has the HAC function, the earpiece is easy to absorb small, please take care to avoid
scratching.

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GRP261X /GRP2624/GRP2634 User Guide
Version 1.0.5.48
U.S. FCC Part 15 Regulatory Information
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation.
Any Changes or modifications not expressly approved by the party responsible for compliance could void
the user's authority to operate the equipment.
Note: This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against
harmful interference in a residential installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or television reception,
which can be determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
•Reorient or relocate the receiving antenna.
•Increase the separation between the equipment and receiver.
•Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
•Consult the dealer or an experienced radio/TV technician for help.
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This
equipment should be installed and operated with minimum distance 20cm between the radiator& your body.
This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.

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GRP261X /GRP2624/GRP2634 User Guide
Version 1.0.5.48
Directive 2014/53/EU Regulatory Information
This applies to GRP2612W/GRP2614/GRP2615/GRP2616 only
Operating Frequency Band (RF)
Max Power
2402-2480MHz (TX&RX)
BT-EDR
8.15dBm
2402-2480MHz (TX&RX)
BT-BLE
7.21dBm
2412-2472MHz (TX&RX)
802.11b
18.15dBm
802.11g
18.42dBm
802.11n-20
19.06dBm
5150-5250MHz (TX&RX)
802.11a
19.28dBm
802.11n-20
18.78dBm
802.11n-40
19.10dBm
802.11ac20
18.89dBm
802.11ac40
18.66dBm
802.11ac80
15.80dBm
5250-5350MHz (TX&RX)
802.11a
18.63dBm
802.11n-20
18.60dBm
802.11n-40
18.93dBm
802.11ac20
18.59dBm
802.11ac40
18.38dBm
802.11ac80
15.85dBm
5470-5725MHz (TX&RX)
802.11a
18.19dBm
802.11n-20
18.32dBm
802.11n-40
18.34dBm
802.11ac20
18.44dBm
802.11ac40
17.72dBm
802.11ac80
15.45dBm

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GRP261X /GRP2624/GRP2634 User Guide
Version 1.0.5.48
Caution: Exposure to Radio Frequency Radiation
This equipment complies with EU radiation exposure limits set forth for an uncontrolled environment. This
equipment should be installed and operated with minimum distance of 20 cm between the radiator and your
body.
CE Authentication
Hereby, Grandstream Networks, Inc. declares that the radio equipment GRP2612W, GRP2614, GRP2615
and GRP2616 are in compliance with Directive 2014/53/EU.
The full text of the EU declaration of conformity is available at the following internet address:
https://www.grandstream.com/support/resources/

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GRP261X /GRP2624/GRP2634 User Guide
Version 1.0.5.48
GNU GPL INFORMATION
GRP261X/GRP2624/GRP2634 firmware contains third-party software licensed under the GNU General
Public License (GPL). Grandstream uses software under the specific terms of the GPL. Please see the
GNU General Public License (GPL) for the exact terms and conditions of the license.
Grandstream GNU GPL related source code can be downloaded from Grandstream web site from:
https://www.grandstream.com/hubfs/Product_Documentation/GRP261X/GRP2624/GRP2634_gnu_gpl.zip

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GRP261X /GRP2624/GRP2634 User Guide
Version 1.0.5.48
Table of Content
DOCUMENT PURPOSE .................................................................................................. 13
CHANGE LOG ................................................................................................................. 14
Firmware Version 1.0.5.48....................................................................................................................14
Firmware Version 1.0.5.45....................................................................................................................14
Firmware Version 1.0.5.44....................................................................................................................14
Firmware Version 1.0.5.36....................................................................................................................14
Firmware Version 1.0.5.33....................................................................................................................14
Firmware Version 1.0.5.15....................................................................................................................14
Firmware Version 1.0.3.6......................................................................................................................14
Firmware Version 1.0.1.23....................................................................................................................14
Firmware Version 1.0.1.17....................................................................................................................15
Firmware Version 1.0.1.7......................................................................................................................15
Firmware Version 1.0.0.31....................................................................................................................15
Firmware Version 1.0.0.16....................................................................................................................15
WELCOME ....................................................................................................................... 16
PRODUCT OVERVIEW ................................................................................................... 19
Feature Highlights.................................................................................................................................19
Technical Specifications .......................................................................................................................19
GETTING STARTED........................................................................................................ 28
Equipment Packaging...........................................................................................................................28
Connecting and Setting Up the GRP261X/GRP2624/GRP2634 .........................................................28
Using the Phone Stand.........................................................................................................................29
Using the Slots for Wall Mounting ........................................................................................................29
Connecting the GRP261X/GRP2624/GRP2634 ..................................................................................29
GETTING TO KNOW GRP261X/GRP2624/GRP2634 ................................................... 31
Idle Screen............................................................................................................................................31

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GRP261X /GRP2624/GRP2634 User Guide
Version 1.0.5.48
Using the Keypad .................................................................................................................................35
Configuration via Keypad .....................................................................................................................37
Characters Input ...................................................................................................................................45
MPK LCD (Available on GRP2614 & GRP2616 only)..........................................................................45
TELEPHONY FEATURES ............................................................................................... 47
Make Phone Calls.................................................................................................................................47
Handset, Speaker and Headset Mode ..........................................................................................47
Multiple SIP Accounts and Lines ...................................................................................................47
Completing Calls ...........................................................................................................................47
Making Calls Using IP Addresses .................................................................................................51
Answering Phone Calls ........................................................................................................................52
Receiving Calls..............................................................................................................................52
Do Not Disturb ...............................................................................................................................53
Call Hold ...............................................................................................................................................55
Call Transfer .........................................................................................................................................56
Conference Call ....................................................................................................................................59
3-way conferencing .......................................................................................................................59
Easy Conference Mode.................................................................................................................61
UCM Conference ..................................................................................................................................62
Participate in UCM Conference Room ..........................................................................................62
Conference Call Menu (CCM) .......................................................................................................63
Conference Call Operations ..........................................................................................................63
Call Forwarding.....................................................................................................................................66
Voice Mail..............................................................................................................................................67
Virtual Voice Mail ...........................................................................................................................68
Instant Messages..................................................................................................................................68
Call Features ........................................................................................................................................69
ADVANCED FEATURES ................................................................................................. 72
Virtual Multi-Purpose Keys ...................................................................................................................72
Predictive Dialing ..................................................................................................................................78
Search in Call History ....................................................................................................................78
Search in Broadsoft Directories ....................................................................................................79

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GRP261X /GRP2624/GRP2634 User Guide
Version 1.0.5.48
VPK Paging Support inside the LCD Call Screen ................................................................................81
Active VPK Page ..................................................................................................................................81
Line Switching in Call Screen ...............................................................................................................82
Shared Call Appearance (SCA)............................................................................................................82
Configuring Eventlist BLF .....................................................................................................................83
Screenshots ..........................................................................................................................................83
Diagnosis ..............................................................................................................................................83
CONTACTS ...................................................................................................................... 85
Local Contacts ......................................................................................................................................85
Add a single Contact.............................................................................................................................85
Phonebook............................................................................................................................................85
XML Phonebook syntax ................................................................................................................85
Download/Upload XML Phonebook from Web UI .........................................................................86
Dialed Numbers Filtering...............................................................................................................88
Contact search mode............................................................................................................................89
Quick Match...................................................................................................................................89
Exact Matching ..............................................................................................................................89
LDAP.....................................................................................................................................................90
Broadsoft Directories ............................................................................................................................90
CALL HISTORY ............................................................................................................... 92
Local Call History..................................................................................................................................92
Missed Calls Indication .........................................................................................................................92
CONNECTING TO DEVICES .......................................................................................... 94
EHS Headset ........................................................................................................................................94
Bluetooth (GRP2614, GRP2615 & GRP2616, GRP2624, GRP2634 only) .........................................94
Wi-Fi (GRP2612W/GRP2614/GRP2615 & GRP2616, GRP2624, GRP2634 only).............................97
RESTORE FACTORY DEFAULT SETTINGS ............................................................... 100
Restore factory settings using LCD menu..........................................................................................100
EXPERIENCING GRP261X/GRP2624/GRP2634 ........................................................ 101

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GRP261X /GRP2624/GRP2634 User Guide
Version 1.0.5.48
Table of Figures
Figure 1: GRP261X/GRP2624/GRP2634 Package Content.......................................................................28
Figure 2: phone Stand and Mounting Slots on the GRP261X/GRP2624/GRP2634...................................29
Figure 3: Tab on the Handset Cradle...........................................................................................................29
Figure 4: GRP261X/GRP2624/GRP2634 Back / Side View .......................................................................30
Figure 5: GRP261X/GRP2624/GRP2634 Idle Screen ................................................................................31
Figure 6: GRP2612/GRP2612P/GRP2612W Keyboard..............................................................................35
Figure 7: GRP2613 Keyboard .....................................................................................................................35
Figure 8: GRP2614 Keyboard .....................................................................................................................35
Figure 9: GRP2615 Keyboard .....................................................................................................................36
Figure 10: GRP2616 Keyboard ...................................................................................................................36
Figure 11: GRP2600 Menu ..........................................................................................................................44
Figure 12: GRP2614 MPK LCD...................................................................................................................45
Figure 13: Phone LCD Configuration (MPK1) .............................................................................................46
Figure 14: MPK LCD Configuration (MPK1) ................................................................................................46
Figure 15: On hook dialing...........................................................................................................................48
Figure 16: Off hook dialing...........................................................................................................................48
Figure 17: Call using Paging/Intercom.........................................................................................................50
Figure 18: Direct IP Call...............................................................................................................................52
Figure 19: Multiple incoming calls................................................................................................................53
Figure 20: Do Not Disturb ............................................................................................................................54
Figure 21: Call Muted...................................................................................................................................54
Figure 22: Black/White List from Web GUI ..................................................................................................55
Figure 23: Black/White List from LCD..........................................................................................................55
Figure 24: On hold duration .........................................................................................................................56
Figure 25: Dynamic Attended Transfer ........................................................................................................57
Figure 26: “Split” softkey ..............................................................................................................................57
Figure 27: “Target” softkey under Transfer Action Page ..............................................................................58
Figure 28: Target - Local Call Log Page ......................................................................................................58
Figure 29: Transfer from Information While Ringing and During Incoming Call..........................................59
Figure 30: Established Conference .............................................................................................................59
Figure 31 : Establish a Conference Call on the GRP2613 ..........................................................................60
Figure 32 : Split conference .........................................................................................................................61
Figure 33: Join UCM Conference ................................................................................................................63
Figure 34: List of Conference Room Users .................................................................................................63
Figure 35: UCM Conference Menu - Invite User .........................................................................................64
Figure 36 : UCM Conference room - Kick user ...........................................................................................64
Figure 37 : UCM Conference room – Mute/ Unmute user...........................................................................65

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GRP261X /GRP2624/GRP2634 User Guide
Version 1.0.5.48
Figure 38: UCM Conference Menu - Bridge Conference ............................................................................65
Figure 39 : UCM Conference Menu - More .................................................................................................66
Figure 40: Disabled Call Forward ................................................................................................................66
Figure 41: Enable Call Forward ...................................................................................................................67
Figure 42: Diversion Information..................................................................................................................67
Figure 43: Instant Messages sub-menu ......................................................................................................68
Figure 44: Sending an Instant Message ......................................................................................................68
Figure 45: IM Sent Successfully ..................................................................................................................69
Figure 46 : Feature Codes List ....................................................................................................................71
Figure 47: VPK Page ...................................................................................................................................72
Figure 48: Edit VPK - Fixed VPK .................................................................................................................72
Figure 49: Edit VPK - Dynamic VPK............................................................................................................73
Figure 50: Line Key as Transfer Mode.........................................................................................................75
Figure 51: VPK - LCD Indication..................................................................................................................75
Figure 52: toggle between screens in call screen .......................................................................................78
Figure 53: Predictive Dialing ........................................................................................................................79
Figure 54: Broadsoft XSI web configuration ................................................................................................80
Figure 55: Predictive Dialing from BS XSI Directories ................................................................................81
Figure 56: VPK Paging ................................................................................................................................81
Figure 57: Active VPK Page ........................................................................................................................82
Figure 58: Line Switching.............................................................................................................................82
Figure 59: Screenshots................................................................................................................................83
Figure 60: Factory Functions .......................................................................................................................84
Figure 61: New contact ................................................................................................................................85
Figure 62 : Download/Upload XML Phonebook...........................................................................................87
Figure 63: Local Phonebook - Contact Information .....................................................................................87
Figure 64: Local Phonebook - Company/Title/Job Fields............................................................................88
Figure 65: Contact Numbers with Special Characters ................................................................................88
Figure 66: Call with Filtered Characters ......................................................................................................88
Figure 67: Before Search.............................................................................................................................89
Figure 68: QuickMatch.................................................................................................................................89
Figure 69: ExactMatch .................................................................................................................................90
Figure 70: LDAP search...............................................................................................................................90
Figure 71: Search in Broadsoft Directories..................................................................................................91
Figure 72: Call History Screen Page ...........................................................................................................92
Figure 73: Missed Calls ...............................................................................................................................93
Figure 74: Headset enabled ........................................................................................................................94
Figure 75: Bluetooth feature ........................................................................................................................95
Figure 76: Bluetooth Scan ...........................................................................................................................95
Figure 77: GRP2615/GRP2614/GRP2616 Pairing Process........................................................................95
Figure 78: Successful Bluetooth pairing ......................................................................................................96
Figure 79: Bluetooth Status .........................................................................................................................96
Figure 80: Pairing Request ..........................................................................................................................96

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GRP261X /GRP2624/GRP2634 User Guide
Version 1.0.5.48
Figure 81: Wi-Fi feature ...............................................................................................................................97
Figure 82; Enable Wi-Fi ...............................................................................................................................97
Figure 83: Wi-Fi Scanning ...........................................................................................................................98
Figure 84: Nearby Wi-Fi networks ...............................................................................................................98
Figure 85: Wi-Fi password required.............................................................................................................98
Figure 86: Failed/Successful Wi-Fi connection ...........................................................................................99
Figure 87: Wi-Fi Status ................................................................................................................................99
Figure 88 : Current connection ....................................................................................................................99
Figure 89: Factory Reset using LCD Menu ...............................................................................................100
Table of Tables
Table 1: GRP261X/GRP2624/GRP2634 Features in a glance ...................................................................17
Table 2: GRP261X/GRP2624/GRP2634 Features in a glance ...................................................................19
Table 3: GRP2612/GRP2612P/GRP2612W Technical Specifications ........................................................20
Table 4: GRP2613 Technical Specifications ................................................................................................21
Table 5: GRP2614 Technical Specifications ................................................................................................22
Table 6: GRP2615 Technical Specifications ................................................................................................23
Table 7: GRP2616 Technical Specifications ................................................................................................24
Table 8: GRP2624 Technical specifications.................................................................................................26
Table 9: GRP261X/GRP2624/GRP2634 Keypad Buttons...........................................................................36
Table 10: Configuration Menu......................................................................................................................38
Table 11: Call Features ................................................................................................................................69
Table 12: VPK Modes in String Format........................................................................................................73
Table 13: VPK Modes Icon Indications ........................................................................................................76

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GRP261X /GRP2624/GRP2634 User Guide
Version 1.0.5.48
DOCUMENT PURPOSE
This document describes how to configure the GRP261X/GRP2624/GRP2634 via phone's LCD menu and
web UI menu to fully manipulate phone's features. To learn advanced functions of
GRP261X/GRP2624/GRP2634, please visit https://www.grandstream.com/support to download the latest
“GRP261X/GRP2624/GRP2634 Administration Guide”.
This guide covers following topics:
Product Overview
Getting started
Getting to know GRP261X/GRP2624/GRP2634
Telephony features
Advanced features
Contacts
Call History
Connecting to devices
Restore to factory default settings

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GRP261X /GRP2624/GRP2634 User Guide
Version 1.0.5.48
CHANGE LOG
This section documents significant changes from previous versions of user manuals for
GRP261X/GRP2624/GRP2634. Only major new features or major document updates are listed here. Minor
updates for corrections or editing are not documented here.
Firmware Version 1.0.5.48
•No major changes.
•This is the initial version for GRP2624/GRP2634.
Firmware Version 1.0.5.45
•No major changes.
Firmware Version 1.0.5.44
•No major changes.
Firmware Version 1.0.5.36
•Added support for a power-saving feature of turning off the LCD display automatically according to a
configurable schedule. [Office Hours]
•Added support for a power-saving feature of turning off the LCD display automatically according to a
timer when not during office hours. [Power Saving Timeout]
Firmware Version 1.0.5.33
•Extended the amount of text that can be displayed on the Extension label.
•Added support for disabling the feature of selecting an account from LCD. [Multiple SIP Accounts and
Lines]
Firmware Version 1.0.5.15
•Added ability to configure Headset TX/RX gain on LCD. [Audio]
Firmware Version 1.0.3.6
•No major change.
Firmware Version 1.0.1.23
•No major change.

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GRP261X /GRP2624/GRP2634 User Guide
Version 1.0.5.48
Firmware Version 1.0.1.17
•No major change.
Firmware Version 1.0.1.7
•Added support for GRP2616.
•Added support for GRP2615.
•Added support of Bluetooth handsfree feature. [Bluetooth]
•Improved Feature of blacklist and whitelist in Contact. [Black/White Listing]
Firmware Version 1.0.0.31
•Added support for more MPK/VPK modes [VIRTUAL MULTI-PURPOSE KEYS]
•UCM conference room updates [UCM CONFERENCE]
Firmware Version 1.0.0.16
•This is the initial version for GRP261X.

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GRP261X /GRP2624/GRP2634 User Guide
Version 1.0.5.48
WELCOME
Thank you for purchasing Grandstream GRP261X/GRP2624/GRP2634 Carrier-Grade IP Phones.
GRP2612/GRP2612P/GRP2612W is featuring 4 dual-color line keys (can be digitally programmed as up to
16 provisionable BLF/fast-dial keys), 2.4” (320x240) TFT color LCD, 4 programmable context-sensitive soft
keys, 100M network ports, integrated PoE (GRP2612P & GRP2612W only), integrated dual-band Wi-Fi
(GRP2612W only), 3-way conference, and Electronic Hook Switch (EHS).
GRP2613 is featuring 6 dual-color line keys (can be digitally programmed as up to 24 provisionable
BLF/fast-dial keys), 2.8” (320x240) TFT color LCD, 4 programmable context-sensitive soft keys, 1000M
network ports, integrated PoE, 3-way conference, and Electronic Hook Switch (EHS).
GRP2614 is featuring 4 dual-color line keys (can be digitally programmed as up to 16 provisionable
BLF/fast-dial keys), 2.8” (320x240) TFT color LCD, 4 programmable context-sensitive soft keys, 2.4”
(320x240) additional screen dedicated to up to 24 multi-purpose keys, 1000M network ports, integrated
PoE, Wi-Fi and Bluetooth support, 3-way conference and Electronic Hook Switch (EHS).
GRP2615 is featuring 10 dual-color line keys (can be digitally programmed as up to 40 provisionable
BLF/fast-dial keys), 4.3” (480x272) TFT color LCD, 5 programmable context-sensitive soft keys, 1000M
network ports, integrated PoE, Wi-Fi and Bluetooth support, 3-way conference and Electronic Hook Switch
(EHS).
GRP2616 is a next generation enterprise IP Phone featuring 6 dual-color line keys (can
be digitally programmed as up to 24 provisionable BLF/fast-dial keys), 4.3” (480x272) TFT color
LCD, 5 programmable context-sensitive soft keys, 2.4” (320x240) additional screen
dedicated to up to 24 multi-purpose keys, USB port, 1000M network ports, integrated PoE, Wi-Fi
and Bluetooth sup-port, 3-way conference and Electronic Hook Switch (EHS).
The GRP2624 is featuring 8-line dual-color line keys (can be digitally programmed as up to 32 provisionable
BLF/fast-dial keys), 2.8 inch (320x240) TFT color LCD, 4 programmable context-sensitive soft keys, 1000M
network ports, integrated PoE, Wi-Fi and Bluetooth support, 5-way conference and Electronic Hook Switch
(EHS).
The GRP2634 is featuring 8-line dual-color line keys (can be digitally programmed as up to 32 provisionable
BLF/fast-dial keys), 2.8 inch (320x240) TFT color LCD, 4 programmable context-sensitive soft keys, 10
multi-purpose keys, 1000M network ports, integrated PoE, Wi-Fi and Bluetooth support, 5-way conference
and Electronic Hook Switch (EHS).

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GRP261X /GRP2624/GRP2634 User Guide
Version 1.0.5.48
The GRP261X/GRP2624/GRP2634 series deliver superior HD audio quality, rich and leading-edge
telephony features, protection for privacy, and broad interoperability with most 3rd party SIP devices and
leading SIP/NGN/IMS platforms. GRP261X/GRP2624/GRP2634 series is the perfect choice for enterprise
users looking for a high quality, feature rich multi-line executive IP phone with advanced functionalities and
performance.
Table 1: GRP261X/GRP2624/GRP2634 Features in a glance
GRP2612
GRP2612P
GRP2612W
4 dual-color line keys (can be digitally programmed as
up to 16 provisionable BLF/fast-dial keys).
2.4” (320x240) TFT color LCD.
4 programmable context-sensitive soft keys.
100M network ports.
Integrated PoE (GRP2612P & GRP2612W only).
3-way conference.
Electronic Hook Switch (EHS).
Wi-Fi support (GRP2612W only).
GRP2613
6 dual-color line keys (can be digitally programmed as
up to 24 provisionable BLF/fast-dial keys).
2.8” (320x240) TFT color LCD.
4 programmable context-sensitive soft keys.
1000M network ports.
integrated PoE.
3-way conference.
Electronic Hook Switch (EHS).
GRP2614
4 dual-color line keys (can be digitally programmed as
up to 16 provisionable BLF/fast-dial keys).
2.8” (320x240) TFT color LCD.
4 programmable context-sensitive soft keys.
2.4” (320x240) additional screen dedicated to up to 24
multi-purpose keys.
1000M network ports.
Integrated PoE.
Wi-Fi and Bluetooth support.
3-way conference.
Electronic Hook Switch (EHS).

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GRP261X /GRP2624/GRP2634 User Guide
Version 1.0.5.48
GRP2615
10 dual-color line keys (can be digitally programmed
as up to 40 provisionable BLF/fast-dial keys).
4.3” (480x272) TFT color LCD.
5 programmable context-sensitive soft keys.
1000M network ports.
Integrated PoE.
Wi-Fi and Bluetooth support.
3-way conference.
Electronic Hook Switch (EHS).
GRP2616
6 dual-color line keys (can be digitally programmed as
up to 24 provisionable BLF/fast-dial keys).
4.3” (480x272) TFT color LCD.
5 programmable context-sensitive soft keys.
2.4” (320x240) additional screen dedicated to up to 24
multi-purpose keys.
1000M network ports.
Integrated PoE.
Wi-Fi and Bluetooth support.
3-way conference.
Electronic Hook Switch (EHS).
GRP2624
8 dual-color line keys (can be digitally programmed as
up to 24 provisionable BLF/fast-dial keys).
2.8 inch (320x240) TFT color LCD.
4 programmable context-sensitive soft keys.
2.4” (320x240) additional screen dedicated to up to 24
multi-purpose keys.
1000M network ports.
Integrated PoE.
Wi-Fi and Bluetooth support.
5-way conference.
Electronic Hook Switch (EHS).
GRP2634
8 dual-color line keys (can be digitally programmed as
up to 24 provisionable BLF/fast-dial keys).
2.8 inch (320x240) TFT color LCD.
4 programmable context-sensitive soft keys.
2.4” (320x240) additional screen dedicated to up to 24
multi-purpose keys.
1000M network ports.
Integrated PoE.
Wi-Fi and Bluetooth support.
5-way conference.
Electronic Hook Switch (EHS).

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GRP261X /GRP2624/GRP2634 User Guide
Version 1.0.5.48
PRODUCT OVERVIEW
Feature Highlights
The following tables contain the major features of the GRP261X/GRP2624/GRP2634:
Table 2: GRP261X/GRP2624/GRP2634 Features in a glance
Technical Specifications
The following table resumes all the technical specifications including the protocols / standards supported,
voice codecs, telephony features, languages and upgrade/provisioning settings for the
GRP261X/GRP2624/GRP2634 series.
Features
GRP2612
GRP2612P
GRP2612W
GRP2613
GRP2614
GRP2615
GRP2616
GRP2624
GRP2634
LCD Display
320x240
320x240
320x240
480x272
480x272
320x240
320x240
LCD Backlight
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Electronic Hook
Switch
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Number of
Lines
4
6
4
10
6
8
8
Programmable
Hard Keys
16
24
16
40
24
32
32
Programmable
Soft Keys
4
4
4
5
5
4
4
MPK LCD
No
No
Yes
No
Yes
No
No
PoE
GRP2612P
only
Yes
Yes
Yes
Yes
Yes
Yes
Network ports
100M
1000M
1000M
1000M
1000M
1000M
1000M
Conference
3-way
3-way
3-way
3-way
3-way
5-way
3-way
Bluetooth
No
No
Yes
Yes
Yes
Yes
No
Wi-Fi
GRP2612W
only
No
Yes
Yes
Yes
Yes
No