Grandstream Networks GSC35 Series User manual

Grandstream Networks, Inc.
GSC35XX Series
User Manual

GSC35XX Series User Manual
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COPYRIGHT
©2019 Grandstream Networks, Inc. http://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:
http://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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FCC Caution
Any Changes or modifications not expressly approved by the party responsible for compliance could void
the user's authority to operate the equipment. 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.
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.
RF Exposure Information (SAR)
This device is designed and manufactured not to be exceeded the emission limits for exposure to radio
frequency RF energy set by the Federal Communications Commission of the United States. The exposure
standard for wireless devices employing a unit of measurement is known as the Specific Absorption Rate
(SAR), and the SAR limit set by FCC is 1.6 W/kg.
This device is complied with SAR for general population/uncontrolled exposure limits in ANSI/IEEE C95.1-
1992, and has been tested in accordance with the measurement methods and procedures specified in OET
Bulletin 65 Supplement C. This device has been tested and meets the FCC RF exposure guidelines when
tested with the device directly contacted to the body. RF exposure compliance with anybody-worn
accessory, which contains metal, was not tested and certified, and use such body-worn accessory should
be avoided.
Changes or modifications not expressly approved by the party responsible for compliance could void the
user’s authority to operate the equipment.
Hereby，Grandstream declares that this device is in compliance with the essential requirements and other
relevant provisions of Directive 1999/5/EC.

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CE Authentication
Hereby, Grandstream Networks, Inc. declares that the radio equipment GSC3510/GSC3505 is in
compliance with Directive 2014/53/EU.
The full text of the EU declaration of conformity is available at the following internet address:
http://www.grandstream.com/support/resources/

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GNU GPL INFORMATION
GSC3510/GSC3505 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:
http://www.grandstream.com/sites/default/files/Resources/GSC35XX_gpl.zip

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Table of Contents
DOCUMENT PURPOSE ............................................................................................... 11
CHANGE LOG..............................................................................................................12
Firmware Version 1.0.0.15 ......................................................................................................................12
WELCOME ...................................................................................................................13
PRODUCT OVERVIEW ................................................................................................14
Feature Highlights ...................................................................................................................................14
GSC3510/GSC3505 Technical Specifications.........................................................................................14
GETTING STARTED.....................................................................................................16
Equipment Packaging..............................................................................................................................16
GSC3510/GSC3505 Ports ......................................................................................................................17
GSC3510/GSC3505 LED Indicators .......................................................................................................17
Hardware Installation...............................................................................................................................18
Wall Mount ...........................................................................................................................................18
Ceiling Mount .......................................................................................................................................19
Anti-theft Installation ............................................................................................................................20
Powering and Connecting GSC3510/GSC3505 .....................................................................................20
Connecting Wiring Seat .......................................................................................................................21
Access GSC3510/GSC3505 Web GUI ...................................................................................................21
GSC3510/GSC3505 APPLICATION SCENARIOS.......................................................23
GSC3510/GSC3505 SIP Two-Way/One-Way Intercom System .............................................................23
Multicast Paging Application....................................................................................................................26
Bluetooth Speaker ...................................................................................................................................29
2-pin Multi-Purpose Input Applications ....................................................................................................30
GSC3510/GSC3505 WEB GUI SETTINGS ..................................................................34
Status Page Definitions ...........................................................................................................................34
Account Status.....................................................................................................................................34

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Network Status.....................................................................................................................................34
System Info ..........................................................................................................................................35
Account Page Definitions ........................................................................................................................35
General Settings ..................................................................................................................................35
SIP Settings .........................................................................................................................................38
Codec Settings.....................................................................................................................................42
Call Settings.........................................................................................................................................44
Advanced Settings ...............................................................................................................................46
Calls Page Definition ...............................................................................................................................48
Call.......................................................................................................................................................48
Call History...........................................................................................................................................49
Call History → All .............................................................................................................................................49
Call History → Intercept Record.......................................................................................................................51
Contacts...............................................................................................................................................53
Contacts List.....................................................................................................................................................53
Group ...............................................................................................................................................................57
Black/White List Settings .....................................................................................................................58
Whitelist...........................................................................................................................................................58
Blacklist............................................................................................................................................................60
Blocking Rules ..................................................................................................................................................61
Phone Settings Page Definitions.............................................................................................................61
General Settings ..................................................................................................................................61
Call Settings.........................................................................................................................................62
Ring Tone.............................................................................................................................................63
Multicast Paging...................................................................................................................................64
Network Settings Page Definitions ..........................................................................................................65
Ethernet Settings .................................................................................................................................65
Bluetooth..............................................................................................................................................67
Wi-Fi Settings.......................................................................................................................................67
Connect to Wi-Fi Network................................................................................................................................67
Wi-Fi Settings description ................................................................................................................................69
OpenVPN® Settings ............................................................................................................................70
Advanced Network Settings.................................................................................................................71
System Settings Page Definitions ...........................................................................................................72

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Security Settings ..................................................................................................................................72
Preferences..........................................................................................................................................73
TR-069 .................................................................................................................................................73
Sensor Settings....................................................................................................................................74
Backup .................................................................................................................................................75
Maintenance Page Definitions.................................................................................................................76
Upgrade ...............................................................................................................................................76
System Diagnosis ................................................................................................................................80
Event Notification .................................................................................................................................82
Application Page Definitions....................................................................................................................83
LDAP Book...........................................................................................................................................83
Recording.............................................................................................................................................84
Device Detection Page Definitions ..........................................................................................................85
Audio Loop Test ...................................................................................................................................85
Built-in Speaker Test ............................................................................................................................85
LED Test ..............................................................................................................................................86
Certificate Verify...................................................................................................................................87
Reset Button Test ................................................................................................................................87
EXPERIENCING THE GSC3510/GSC3505..................................................................88

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Table of Tables
Table 1: GSC3510/GSC3505 Features in a Glance ...................................................................................14
Table 2: GSC3510/GSC3505 Technical Specifications...............................................................................14
Table 3: Equipment Packaging ...................................................................................................................16
Table 4: GSC3510/GSC3505 Ports Description .........................................................................................17
Table 5: GSC3510 LED Indicators ..............................................................................................................17
Table of Figures
Figure 1: GSC3510/GSC3505 Package Content........................................................................................16
Figure 2: GSC3510/GSC3505 Ports ...........................................................................................................17
Figure 3: Wall Mount - Step 1 .....................................................................................................................18
Figure 4: Wall Mount - Step 2 .....................................................................................................................18
Figure 5: Wall Mount - Step 3 .....................................................................................................................18
Figure 6: Wall Mount - Step 4 .....................................................................................................................18
Figure 7: Ceiling Mount - Step 1 & 2 ...........................................................................................................19
Figure 8: Ceiling Mount - Step 3 .................................................................................................................19
Figure 9: Ceiling Mount - Step 4 .................................................................................................................19
Figure 10: Ceiling Mount - Step 5 ...............................................................................................................19
Figure 11: Anti-theft Installation...................................................................................................................20
Figure 12: Powering GSC3505/GSC3510 ..................................................................................................20
Figure 13: Connecting Wiring Seat .............................................................................................................21
Figure 14: GSC3510 Web GUI – Login ......................................................................................................22
Figure 15: SIP 2-Way/1-Way Paging Diagram............................................................................................23
Figure 16: SIP Account Configuration .........................................................................................................24
Figure 17: SIP Account Status ....................................................................................................................24
Figure 18: Default Blocking Rules...............................................................................................................25
Figure 19: Whitelisted Devices ...................................................................................................................25
Figure 20: Multicast paging Diagram ..........................................................................................................26
Figure 21: Multicast Paging Listening Addresses .......................................................................................27
Figure 22: Multicast Paging – Paging Priority Active ..................................................................................27
Figure 23: Multicast Paging - Priority Barge ...............................................................................................28
Figure 24: Connecting the GSC3510/GSC3505 as a Bluetooth Speaker ..................................................29
Figure 25: 2-pin Multi-Purpose Input Applications ......................................................................................30
Figure 26: Sensor Settings..........................................................................................................................30
Figure 27: Sensor Setting - Linkage Function.............................................................................................31
Figure 28: Sensor Setting - Linkage Function - Play Audio ........................................................................32
Figure 29: Sensor Setting - Linkage Function - Make Call .........................................................................32

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Figure 30: Trigger Time ...............................................................................................................................33
Figure 31: Click-to-Dial Feature ..................................................................................................................48
Figure 32: Outgoing call in progress and accepted ....................................................................................49
Figure 33: Call History All...........................................................................................................................50
Figure 34: Call details under Call History All..............................................................................................50
Figure 35: Add number from call history to an existing contact ..................................................................51
Figure 36: Call History Intercept Record....................................................................................................51
Figure 37: Call details under Call History Intercept Record.......................................................................52
Figure 38: Contacts Contacts List ..............................................................................................................53
Figure 39: Add New Contact .......................................................................................................................53
Figure 40: Contacts Group.........................................................................................................................57
Figure 41: Add New Group..........................................................................................................................58
Figure 42: Whitelist section .........................................................................................................................58
Figure 43: Add phonebook contacts to whitelist .........................................................................................59
Figure 44: Add blocked numbers to whitelist ..............................................................................................59
Figure 45: Add Manually to Whitelist...........................................................................................................60
Figure 46: Blacklist Section.........................................................................................................................60
Figure 47: Add from Call History to Blacklist...............................................................................................61
Figure 48: Wi-Fi Basics Page......................................................................................................................68
Figure 49: Connect to Wi-Fi Network..........................................................................................................68
Figure 50: GSC3510/GSC3505 Connect to Wi-Fi-Show Advanced Options..............................................69
Figure 51: GSC3510/GSC3505 Backup Page............................................................................................75
Figure 52: Backup content selection ...........................................................................................................75
Figure 53: Generated Backup .....................................................................................................................76
Figure 54: Device Detection - Audio Loop Test...........................................................................................85
Figure 55: Device Detection - Built-in Speaker Test ...................................................................................86
Figure 56: Device Detection - LED Test......................................................................................................86
Figure 57: Device Detection - Reset Button Test........................................................................................87

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DOCUMENT PURPOSE
This document describes how to configure the GSC3510 via web UI menu to fully manipulate device's
features. Please visit http://www.grandstream.com/support to download the latest “GSC3510 User Manual”.
This guide covers following topics:
▪Product Overview
▪Getting Started
▪Hardware Installation
oWall Mount
oCeiling Mount
oAnti-theft Installation
▪GSC3510/GSC3505 Application Scenarios
oGSC3510/GSC3505 SIP two-way/one-way Intercom System
oMulticast Paging Application
oBluetooth Speaker
o2-pin Multi-Purpose Input Applications
▪GSC3510 Web GUI Settings
▪Experiencing the GSC3510

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CHANGE LOG
This section documents significant changes from previous versions of user manual for GSC35XX Seies.
Only major new features or major document updates are listed here. Minor updates for corrections or editing
are not documented here.
Firmware Version 1.0.0.15
•This is the initial version.

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WELCOME
Thank you for purchasing Grandstream GSC3510/GSC3505 SIP Intercom speakers. The GSC3505 is a
one-way SIP Intercom Speaker and GSC3510 is a two-way full-duplex SIP intercom speaker/microphone,
both featuring one 100Mbps Ethernet port with PoE/PoE+, integrated dual-band 2.4G/5G Wi-Fi, integrated
Bluetooth, high fidelity 8W speaker and a multi-purpose input port supporting a wide range of peripherals,
3 directional microphones with Multichannel Microphone Array Design (MMAD) available for GSC3510 only.
Both GSC3505 and GSC3510 with their Hi-Fi speaker delivers full-band audio, while GSC3510 adds a
state-of-art microphone array with pickup distance up to 4.2 meters. The built-in whitelist and blacklist
features enable easy filtering of unwanted calls from the Internet. Its modern industrial design and rich
features make it ideal for classrooms, hospitals, apartments, dormitories and much more.

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PRODUCT OVERVIEW
Feature Highlights
The following table contains the major features of the GSC3510/GSC3505:
Table 1: GSC3510/GSC3505 Features in a Glance
GSC3510/GSC3505 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 GSC3510/GSC3505.
Table 2: GSC3510/GSC3505 Technical Specifications
Protocols/Standards
SIP RFC3261, TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP, ICMP, DNS (A
record, SRV, NAPTR), DHCP, PPPoE, SSH, TFTP, NTP, STUN, SIMPLE, LLDP-
MED, LDAP, TR-069, 802.1x, TLS, SRTP, IPv6, OpenVPN®.
Network Interfaces
Ethernet RJ45 10/100Mbps ports with integrated PoE/PoE+.
Bluetooth
Yes, integrated. Bluetooth.
Wi-Fi
Yes, dual-band 2.4 & 5GHz with 802.11 a/b/g/n.
Alarm Input
1 Alarm Input Port.
Voice Codec
G.711µ/a, G.722 (wide-band), G.722.1, G.722.1C, G.726-32, iLBC, Opus,
G.729A/B in-band and out-of-band DTMF (In audio, RFC2833, SIP INFO).
GSC3510
GSC3505
•Up to 16 SIP accounts.
•Ethernet RJ45 10/100Mbps, PoE/PoE+, Integrated Bluetooth, Wi-Fi.
•Both GSC3505 and GSC3510 HD with their Hi-Fi speaker delivers full-band
audio, Hands-free speakerphone with HD acoustic chamber, advanced
acoustic echo cancellation, while GSC3510 adds a state-of-art microphone
array with pickup distance up to 4.2 meters.

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Telephony Features
Hold, transfer, forward (unconditional/no-answer/busy), call park/pickup,
downloadable contacts, call record, call log, auto answer, click-to-dial, flexible dial
plan.
HD Audio
Yes, HD speakerphone with support for wideband audio.
QoS
Layer 2 QoS (802.1Q, 802.1p) and Layer 3 (ToS, DiffServ, MPLS) QoS.
Security
User and administrator level passwords, MD5 and MD5-sess based authentication,
256-bit AES encrypted configuration file, TLS, SRTP, HTTPS, 802.1x media access
control.
Multi-languages
English, Chinese and Portuguese.
Upgrade/
Provisioning
Firmware upgrade via TFTP / HTTP / HTTPS or local HTTP upload, mass
provisioning using TR-069 or AES encrypted XML configuration file.
Power and Green
Energy Efficiency
Integrated PoE* 802.3af Class 3, PoE+ 802.3at, Class 4.
Package Content
GSC3510/GSC3505, Metal Bracket, Plastic Bracket, Wiring Seat, Hang rope
plate, 3x Screw (PM 3 x 50), 3x Screw (PA 3.5 x 20), 1 x Screw (M3 x 15),
Hexagonal Screwdriver, 3 x Plastic Expansion Bolt, 3 x M3 NUT, Quick Installation
Guide, GPL license.

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GETTING STARTED
This chapter provides basic installation instructions including the list of the packaging contents and also
information for obtaining the best performance with the GSC3510/GSC3505.
Equipment Packaging
Table 3: Equipment Packaging
Figure 1: GSC3510/GSC3505 Package Content
Note: Check the package before installation. If you find anything missing, contact your system
administrator.
GSC3510/GSC3505
•1x GSC3510/GSC3505 Main Case.
•1x Metal Bracket.
•1x Plastic Bracket.
•Wiring Seat.
•Hang rope plate.
•3x Screw (PM 3x50)
•3x Screw (PA 3.5 x20).
•1x Screw (M3x15)
•Hexagonal Screwdriver.
•3x Plastic Expansion Bolt.
•3x M3 NUT.
•1x Quick Installation Guide.
•1x GPL license.

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GSC3510/GSC3505 Ports
Figure 2: GSC3510/GSC3505 Ports
Table 4: GSC3510/GSC3505 Ports Description
NO.
Name
Description
RESET
Factory reset button. Press for 10 seconds to reset factory default
settings.
NET/PoE
Ethernet RJ45 port (10/100Mbps) supporting PoE/PoE+.
2-PIN Port
2-PIN Multi-Purpose Input Port.
GSC3510/GSC3505 LED Indicators
The GSC3510/GSC3505 contains 4 types of colored LEDs (Red, Green, White and Blue light) that are used
in some specific situations and operations. Please, refer to the following table describing each one of the
LED Indicators status:
Table 5: GSC3510 LED Indicators
Color
LED Indicator Status
Description
Red Light
Fast Flashing (every 1s)
Rebooting/factory resetting
Slow Flashing (On 1s, Off 2s)
Unhandled event: (Included Missed call(s), new voice
mails, new SIP messages).
Solid Red
The contacts/storage space is full
Green Light
Fast Flashing (every 1s)
Incoming/outgoing call
Slow Flashing (On 1s, Off 2s)
Call on hold.
Solid Green
During the call.
White Light
Fast Flashing (every 1s)
Upgrading the firmware.
Blue Light
Fast Flashing (every 1s)
Bluetooth pairing.
2
3
1
1
2
3

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Hardware Installation
GSC3510/GSC3505 can be mounted on the wall or ceiling. Please refer to the following steps for the
appropriate installation
Wall Mount
1. Locate the equipment holder on the desired position with arrow up. Drill three holes on the wall
referring to the positions of holes on the metal bracket.
2. Fix the metal bracket on the wall by expansion screws.
3. Align the position line on device’s back cover with the positioning slot.
4. Rotate the device clockwise until it is locked on the right position.
Figure 3: Wall Mount - Step 1
Figure 4: Wall Mount - Step 2
Figure 5: Wall Mount - Step 3
Figure 6: Wall Mount - Step 4

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Ceiling Mount
1. Put the ceiling mounting (metal bracket) in the ceiling’s center and mark the position of the three
screws holes.
2. Drill a round hole with a diameter of 18mm for Ethernet cable. The distance between its center and
the highlighted hole on the plastic bracket should be 35mm.
3. Fix the plastic and metal brackets on the ceiling with flat-head screws and locknuts. Then place
and Ethernet cable pass through the 18mm-round hole.
4. Align the position line on device’s back cover with the positioning slot.–––
5. Rotate the device clockwise until it is locked on the right position.
Figure 7: Ceiling Mount - Step 1 & 2
Figure 8: Ceiling Mount - Step 3
Figure 9: Ceiling Mount - Step 4
Figure 10: Ceiling Mount - Step 5

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Anti-theft Installation
After the device is assembled with the metal bracket support on the wall or ceiling, use the anti-detachable
screw (M3x15) in order to prevent theft.
Figure 11: Anti-theft Installation
Powering and Connecting GSC3510/GSC3505
The GSC3510/GSC3505 can be powered on using PoE/PoE+ switch or PoE injector using following steps:
•Step 1: Plug a RJ45 Ethernet cable into the network port of the GSC3510/GSC3505.
•Step 2: Plug the other end into the power over Ethernet (PoE) switch or PoE injector.
Figure 12: Powering GSC3505/GSC3510