Grandstream Networks GXP1160 User manual

GXP1160/GXP1165 USER MANUAL
Grandstream Networks, Inc.
GXP1160/GXP1165
Small-Medium Business IP Phone

FIRMWARE VERSION 1.0.5.24 GXP1160/GXP1165 USER MANUAL Page 2 of 63
GXP1160/GXP1165 User Manual
Index
GUI INTERFACE EXAMPLES....................................................................5
GNU GPL INFORMATION..........................................................................6
CHANGE LOG ...........................................................................................7
FIRMWARE VERSION 1.0.5.24............................................................................................................7
FIRMWARE VERSION 1.0.5.15............................................................................................................7
FIRMWARE VERSION 1.0.5.2..............................................................................................................7
WELCOME.................................................................................................8
PRODUCT OVERVIEW..............................................................................9
FEATURE HIGHTLIGHTS.....................................................................................................................9
GXP1160/GXP1165 TECHNICAL SPECIFICATIONS...........................................................................9
INSTALLATION........................................................................................11
EQUIPMENT PACKAGING .................................................................................................................11
CONNECTING YOUR PHONE ........................................................................................................... 11
SAFETY COMPLIANCES....................................................................................................................13
WARRANTY.........................................................................................................................................13
USING THE GXP1160/GXP1165..............................................................14
GETTING FAMILAR WITH THE LCD..................................................................................................14
GETTING FAMILAR WITH THE KEYPAD...........................................................................................16
MAKING PHONE CALLS.....................................................................................................................17
HANDSET, SPEAKER AND HEADSET MODE ...........................................................................17
2 CALLS WITH 1 SIPACCOUNT.................................................................................................17
COMPLETING CALLS..................................................................................................................18
MAKING CALLS USING IP ADDRESSES...................................................................................19
ANSWERING PHONE CALLS ............................................................................................................21
RECEIVING CALLS......................................................................................................................21
DO NOT DISTURB.......................................................................................................................21
DURING A PHONE CALL....................................................................................................................21
CALL WAITING/CALL HOLD .......................................................................................................21
MUTE............................................................................................................................................22

FIRMWARE VERSION 1.0.5.24 GXP1160/GXP1165 USER MANUAL Page 3 of 63
CALL TRANSFER ........................................................................................................................22
3-WAY CONFERENCING ............................................................................................................23
VOICE MESSAGES (MESSAGE WAITING INDICATOR)...........................................................25
CALL FEATURES................................................................................................................................25
CUSTOMIZED LCD SCREEN & XML.................................................................................................27
CONFIGURATION GUIDE........................................................................28
CONFIGURATION VIA KEYPAD.........................................................................................................28
CONFIGURATION VIA WEB BROWSER ...........................................................................................33
DEFINITIONS ......................................................................................................................................33
STATUS PAGE DEFINITIONS .....................................................................................................34
ACCOUNTS PAGE DEFINITIONS...............................................................................................35
SETTINGS PAGE DEFINITIONS.................................................................................................43
NETWORK PAGE DEFINITIONS.................................................................................................47
MAINTENANCE PAGE DEFINITIONS.........................................................................................49
PHONEBOOK PAGE DEFINITIONS............................................................................................52
NAT SETTINGS...................................................................................................................................54
WEATHER UPDATE............................................................................................................................55
PUBLIC MODE....................................................................................................................................56
EDITING CONTACTS AND CLICK-TO-DIAL......................................................................................56
UPGRADING AND PROVISIONING ........................................................59
UPGRADE VIA KEYPAD MENU .........................................................................................................59
UPGRAGE VIAWEB GUI....................................................................................................................59
NO LOCAL TFTP/HTTP SERVERS ....................................................................................................60
CONFIGURATION FILE DOWNLOAD................................................................................................60
RESTORE FACTORY DEFAULT SETTINGS...........................................62
EXPERIENCING THE GXP1160/GXP1165 ..............................................63

FIRMWARE VERSION 1.0.5.24 GXP1160/GXP1165 USER MANUAL Page 4 of 63
Table of Tables
GXP1160/GXP1165 User Manual
Table 1: GXP1160/GXP1165 TECHNICAL SPECIFICATIONS.....................................................................9
Table 2: GXP1160/GXP1165 EQUIPMENT PACKAGING.......................................................................... 11
Table 3: GXP1160/GXP1165 CONNECTORS............................................................................................12
Table 4: LCD DISPLAY DEFINITIONS........................................................................................................14
Table 5: GXP1160/GXP1165 LCD ICONS..................................................................................................15
Table 6: KEYPAD DEFINITIONS ................................................................................................................16
Table 7: CALL FEATURES..........................................................................................................................25
Table 8: CONFIGURATION MENU.............................................................................................................28
Table of Figures
GXP1160/GXP1165 User Manual
Figure 1: GXP1160/GXP1165 Ports............................................................................................................ 11
Figure 2: GXP1160/GXP1165 Pin-out.........................................................................................................12
Figure 3: Keypad MENU Flow...................................................................................................................32
Figure 4: Weather Update...........................................................................................................................55
Figure 5: Web GUI - Phonebook->Contacts ...............................................................................................57
Figure 6: Click-to-Dial..................................................................................................................................58

FIRMWARE VERSION 1.0.5.24 GXP1160/GXP1165 USER MANUAL Page 5 of 63
GUI INTERFACE EXAMPLES
http://www.grandstream.com/products/gxp_series/general/documents/gxp21xx_gui.zip
1. Screenshot of Login Page
2. Screenshots of Status Pages
3. Screenshots of Accounts Pages
4. Screenshots of Settings Pages
5. Screenshots of Network Pages
6. Screenshots of Maintenance Pages
7. Screenshots of Phonebook Pages

FIRMWARE VERSION 1.0.5.24 GXP1160/GXP1165 USER MANUAL Page 6 of 63
GNU GPL INFORMATION
GXP1160/GXP1165 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/support/faq/gnu_gpl.

FIRMWARE VERSION 1.0.5.24 GXP1160/GXP1165 USER MANUAL Page 7 of 63
CHANGE LOG
This section documents significant changes from previous versions of user manuals for
GXP1160/GXP1165. Only major new features or major document updates are listed here. Minor updates
for corrections or editing are not documented here.
FIRMWARE VERSION 1.0.5.24
Updated TFTP server download link for 1.0.5.24. [NO LOCAL TFTP/HTTP SERVERS]
FIRMWARE VERSION 1.0.5.15
Updated Web GUI interface examples with new screenshots for 1.0.5.15. [GUI INTERFACE
EXAMPLES]
Add pin-out information. [Figure 2: GXP1160/GXP1165 Pin-out]
Updated Auto Attended Transfer information. [CALL TRANSFER]
Modified Public Mode information. [PUBLIC MODE]
Updated Click-To-Dial feature information. [EDITING CONTACTSAND CLICK-TO-DIAL]
Updated Keypad MENU options and Keypad configuration flow. [CONFIGURATION VIA KEYPAD]
Updated Web GUI options. [DEFINITIONS]
FIRMWARE VERSION 1.0.5.2
This is the initial version.

FIRMWARE VERSION 1.0.5.24 GXP1160/GXP1165 USER MANUAL Page 8 of 63
WELCOME
Thank you for purchasing Grandstream GXP1160/GXP1165 Small-Medium Business IP Phone.
GXP1160/GXP1165 is a next generation small-to-medium business IP phone that features single SIP
account, up to 2 call appearances, a 128 x 40 graphical LCD, 3 XML programmable context-sensitive soft
keys, dual network ports with integrated PoE (GXP1165 only), 3-way conference, and Electronic Hook
Switch (EHS) with Plantronics headset. The GXP1160/1165 delivers superior audio quality, rich and
leading edge telephony features, personalized information and customizable application service,
automated provisioning for easy deployment, advanced security protection for privacy, and broad
interoperability with most 3rd party SIP devices and leading SIP/NGN/IMS platforms. It is a perfect choice
for small-to-medium businesses looking for a high quality, feature rich IP phone with highly affordable cost.
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 User Manual, could void your manufacturer warranty.
Warning:
Please do not use a different power adaptor with the GXP1160/GXP1165 as it may cause damage to the
products and void the manufacturer warranty.
This document is subject to change without notice. The latest electronic version of this user manual is
available for download here:
http://www.grandstream.com/support
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.

FIRMWARE VERSION 1.0.5.24 GXP1160/GXP1165 USER MANUAL Page 9 of 63
PRODUCT OVERVIEW
FEATURE HIGHTLIGHTS
128 x 40 pixel graphical LCD display;
Single SIP account, up to 2 call appearances, 3 XML programmable context-sensitive soft keys, 3-way
conference;
Phonebook with up to 500 contacts and call history with up to 500 records;
Automated personal information service (e.g., local weather), personalized music sing tone/ring back
tone;
Dual switched auto-sensing 10/100Mbps network ports, integrated PoE (GXP1165 only);
Automated provisioning using TR-069 or AES encrypted XML configuration file, SRTP and TLS for
advanced security protection, 802,1x for media access control.
GXP1160/GXP1165 TECHNICAL SPECIFICATIONS
Table 1: GXP1160/GXP1165 TECHNICAL SPECIFICATIONS
Protocols and
Standards
SIP RFC3261, TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP/RARP, ICMP, DNS
(A record, SRV, NAPTR), DHCP, PPPoE, TELNET, TFTP, NTP, STUN, SIMPLE,
TR-069, 802.1X, LLDP, LLDP-MED, LDAP, IPv6, TLS, SRTP
Network Interfaces
Dual switched 10/100Mbps port, integrated PoE (GXP1165 only)
Graphic Display
128 x 40 graphical LCD display
Feature Keys
1 SIP account, 3 XML programmable context sensitive soft keys, 5
Navigation/Menu/Volume keys, 9 dedicated function keys for PHONEBOOK,
MESSAGE (with LED indicator), HOLD, TRANSFER, CONFERENCE, FLASH,
SPEAKERPHONE, VOLUME, SEND/REDIAL
Voice Codec
Support for G.723.1, G.729A/B, G.711u/a, G.726-32, G.722 (wide-band), iLBC,
in-band and out-of-band DTMF (in audio, RFC2833, SIP INFO)
Telephony Features
Hold, transfer, forward, 3-way conference, downloadable phone book (XML,
LDAP, up to 500 items), call waiting, call log (up to 500 records), off-hook auto dial,
auto answer, click-to-dial, flexible dial plan, hot-desking, personalized music
ringtones, server redundancy and fail-over
HD Audio
Yes, HD handset with support for wideband audio
Headset Jack
RJ9, supporting Electronic Hook Switch (EHS) with Plantronics headsets
Base Stand
Yes, 1 angle position available

FIRMWARE VERSION 1.0.5.24 GXP1160/GXP1165 USER MANUAL Page 10 of 63
Wall Mountable
Yes
QoS
Layer 2 (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, 802.1X media
access control
Multi-language
English, German, Italian, French, Spanish, Portuguese, Russian, Croatian,
Simplified Chinese, traditional Chinese, Korean, Japanese and etc
Upgrade and
Provisioning
Firmware upgrade via TFTP/HTTP/HTTPS, mass provisioning using TR-069 or
AES encrypted XML configuration file
Power and Green
Energy Efficiency
Universal power adapter:
Input: 100-240VAC 50-60Hz; Output: 5VDC, 800mA
Integrated Power-over-Ethernet (Built-in auto-sensing: Cisco and IEEE 802.3af
standard)
Max power consumption 2.5W (power adapter) or 3W (PoE)
Physical
Unit dimension: 154mm (W) x 200mm (L) x 79mm (D) (handset onhook)
Unit weight: 0.6kg
Package weight: 1.03kg
Operating
Temperature and
Humidity
Operating: 32-104 oF / 0-40 oC, 10-90% (non-condensing)
Storage: 14-140 oF / -10-60 oC
Package Content
GXP1160/GXP1165 phone, handset with cord, base stand, universal power
supply, network cable, quick start guide
Compliance
FCC Part 15 (CFR 47) Class B; EN55022 Class B, EN55024, EN61000-3-2,
EN61000-3-3, EN60950-1; AS/NZS CISPR 22 Class B, AS/NZS CISPR 24, RoHS;
UL 60950 (power adapter)

FIRMWARE VERSION 1.0.5.24 GXP1160/GXP1165 USER MANUAL Page 11 of 63
INSTALLATION
EQUIPMENT PACKAGING
Table 2: GXP1160/GXP1165 EQUIPMENT PACKAGING
Main Case
Yes
1
Handset
Yes
1
Phone Cord
Yes
1
Power Adaptor
Yes
1
Ethernet Cable
Yes
1
Phone Stand
Yes
1
Quick Start Guide
Yes
1
CONNECTING YOUR PHONE
Figure 1: GXP1160/GXP1165 Ports

FIRMWARE VERSION 1.0.5.24 GXP1160/GXP1165 USER MANUAL Page 12 of 63
Table 3: GXP1160/GXP1165 CONNECTORS
Handset Port
RJ9
Headset Port
RJ9 headset connector port, supporting EHS (Electronic Hook-Switch) with
Plantronics headsets
LAN Port
10/100Mbps RJ-45 port connecting to Ethernet, integrated PoE (GXP1165
only)
PC Port
10/100Mbps RJ-45 port for PC connection
Power Jack
5V DC Power connector port
To set up the GXP1160/GXP1165, follow the steps below:
1. Attach the phone stand to the back of the phone where they are slots;
2. Connect the handset and main phone case with the phone cord;
3. Connect the LAN port of the phone to the RJ45 socket of a hub/switch or a router (LAN side of the
router) using the Ethernet cable;
4. Connect the 5V DC output plug to the power jack on the phone; plug the power adapter into an
electrical outlet. If PoE switch is used on GXP1165 in step 3, this step could be skipped;
5. The LCD will display provisioning or firmware upgrade information. Before continuing, please wait for
the date/time display to show up;
6. Using the keypad configuration menu or phone's embedded web server (Web GUI) by entering the IP
address in web browser, you can further configure the phone.
Please see below the pin-out information for GXP1160/GXP1165.
Figure 2: GXP1160/GXP1165 Pin-out
GXP1160/GXP1165 Power Jack
GXP1160/GXP1165 Handset/Headset Jack
GXP1160/GXP1165 Handset/Headset Plug

FIRMWARE VERSION 1.0.5.24 GXP1160/GXP1165 USER MANUAL Page 13 of 63
SAFETY COMPLIANCES
The GXP1160/GXP1165 phone complies with FCC/CE and various safety standards. The
GXP1160/GXP1165 power adapter is compliant with the UL standard. Use the universal power adapter
provided with the GXP1160/GXP1165 package only. The manufacturer’s warranty does not cover
damages to the phone caused by unsupported power adapters.
WARRANTY
If the GXP1160/GXP1165 phone was purchased from a reseller, please contact the company where the
phone was purchased for replacement, repair or refund. If the phone was purchased directly from
Grandstream, contact the Grandstream Sales and Service Representative for a RMA (Return Materials
Authorization) number before the product is returned. Grandstream reserves the right to remedy warranty
policy without prior notification.
Warning:
Use the power adapter provided with the phone. Do not use a different power adapter as this may damage
the phone. This type of damage is not covered under warranty.

FIRMWARE VERSION 1.0.5.24 GXP1160/GXP1165 USER MANUAL Page 14 of 63
USING THE GXP1160/GXP1165
GETTING FAMILAR WITH THE LCD
GXP1160/GXP1165 has a dynamic and customizable screen. The screen displays differently depending
on whether the phone is idle or in use (active). The following table describes the items displayed on the
GXP1160/GXP1165 idle screen.
Table 4: LCD DISPLAY DEFINITIONS
DATE AND TIME
Displays the current date and time. It can be synchronized with
Internet time servers.
LOGO NAME
Displays company logo name. This logo name can be customized via
xml screen customization. The maximum size for logo name string is 26
characters in English (approximately).
NETWORK STATUS
Shows the status of network in the middle of the screen. It will indicate
whether the network is down or starting.
STATUS BAR
Shows the status of the phone for registration status, call features and
etc, using icons as shown in the next table.
SOFTKEYS in Idle Screen
The softkeys are context sensitive and will change depending on the
status of the phone. Typical functions assigned to softkeys are:
NextScr
Toggles among default idle screen, weather information, IP
Address and extension number.
Headset
Onhook/offhook using headset; or toggle to headset mode.
FwdAll
Unconditionally forwards the phone line (account 1) to another
phone.
Missed
Shows up unanswered calls to this phone.
Redial
Redials the last dialed number when there is existed dialed call
log.
SOFTKEYS in Call Screen
The softkeys are context sensitive and will change depending on the
call status of the phone. Here are the main softkeys in call screen.

FIRMWARE VERSION 1.0.5.24 GXP1160/GXP1165 USER MANUAL Page 15 of 63
Redial
Redials the last dialed number after off hook when there is existed
call log.
Dial
Dials the call out after off hook and entering the number.
Answer
Answers the incoming call when the phone is ringing.
Reject
Rejects the incoming call when the phone is ringing.
EndCall
Ends the active call.
Headset
Onhook/offhook using headset; or toggle to headset mode.
Mute
Mute/Unmute in the current active call.
Transfer
Transfer softkey will show up after pressing TRAN button and
entering transfer target number. Press Transfer softkey to do blind
transfer.
Split
In auto-attended transfer mode, after establishing the second call,
press Split to quit transfer and go back to normal talking status.
ConfCall
Conferences the active calls.
ReConf
Re-establish the conference among the calls on hold.
Table 5: GXP1160/GXP1165 LCD ICONS
Registration Status: Registered.
Registration Status: Not Registered.
Handset Status.
OFF - handset on hook
ON - handset off hook
Speaker Status.
OFF - speaker off
ON - speaker on

FIRMWARE VERSION 1.0.5.24 GXP1160/GXP1165 USER MANUAL Page 16 of 63
Headset Status.
OFF - headset off
ON - headset on
DND Status.
OFF - Do Not Disturb disabled
ON - Do Not Disturb enabled
Call Forward Status.
OFF - Call Forward feature disabled
ON - Call Forward feature enabled
MUTE Status.
OFF - The active call is not muted
ON - The active call is muted
SRTP Status.
OFF - SRTP is not used
ON - SRTP is used
GETTING FAMILAR WITH THE KEYPAD
The following table describes the buttons used on the GXP1160/GXP1165 keypad.
Table 6: KEYPAD DEFINITIONS
Place active call on hold, or resume the call on
hold.
Transfer an active call to another number.
Establish 3-way conference call with other 2
parties.
Bring up a new line; or answer the second
incoming call.
Speaker.
Send out the number, or redial.

FIRMWARE VERSION 1.0.5.24 GXP1160/GXP1165 USER MANUAL Page 17 of 63
Phonebook. Brings phonebook on screen.
Voicemail. Press to retrieve voice mails.
Navigation Keys/Menu.
Press the 4 navigation keys to move
up/down/left/right;
Press the round button in the center to enter
Keypad Configuration MENU when phone is in
idle;
The round button "MENU" can also be used as
ENTER key when in Keypad Configuration.
Volume. Press "-" or "+" to adjust the volume.
0 - 9, *, #
Standard phone keypad.
MAKING PHONE CALLS
HANDSET, SPEAKER AND HEADSET MODE
The GXP1160/GXP1165 allows users to switch among handset, speaker or headset when making calls.
Press the Hook Switch to switch to handset; press the Headset softkey to switch to headset; or press the
Speaker button to switch to speaker.
2 CALLS WITH 1 SIP ACCOUNT
GXP1160/GXP1165 can support up to two lines "virtually" mapped to one SIP account. By picking up the
handset, the GXP1160/GXP1165 will be in off hook state and the dial tone will be heard. To make a call,
dial out the number with the current line.
During the call, users can press the FLASH key to hold the current call and make/answer another
call. If they are 2 calls established, users can switch the two lines by pressing the FLASH key .

FIRMWARE VERSION 1.0.5.24 GXP1160/GXP1165 USER MANUAL Page 18 of 63
COMPLETING CALLS
There are several ways to complete a call on GXP1160/GXP1165.
On hook dialing. Enter the number when the phone is on hook and then send out.
When the phone is in idle, enter the number to be dialed out;
Take handset off hook; or
Press Speaker button; or
Press Headset softkey with headset plugged in;
The call will be dialed out.
Off hook and dial. Off hook the phone, enter the number and send out.
Take handset off hook; or
Press Speaker button; or
Press Headset softkey with headset plugged in;
You shall hear dial tone after off hook;
Enter the number;
Press SEND key or # to dial out.
Redial. Redial the last dialed number.
Take handset off hook; or
Press Speaker button; or
Press Headset softkey with headset plugged in; or
When the phone is in idle;
Press SEND key , or the REDIAL softkey.
Via Call History. Dial the number logged in phone's call history.
Press MENU button to bring up the main menu;
Enter Call History and select "Answered Calls", "Missed Calls", "Transferred Calls" or "Forwarded
Calls";
Select the entry you would like to call using the navigation "UP" and "DOWN" arrow keys;
Press SEND key to dial out.
Via Phonebook. Dial the number from the phonebook.
Press key to bring up Phonebook; or
Press MENU button to bring up the main menu and select Phonebook to enter;

FIRMWARE VERSION 1.0.5.24 GXP1160/GXP1165 USER MANUAL Page 19 of 63
Select the phonebook entry you would like to call using the navigation "UP" and "DOWN" arrow
keys;
Press SEND key to dial the selected contact.
Via Paging/Intercom.
Take handset off hook; or
Press Speaker button; or
Press Headset softkey with headset plugged in;
You shall hear dial tone after off hook;
Press MENU button to switch the call screen from "DIAL" to "Paging";
Enter the number;
Press SEND key or # to dial out.
Note:
After entering the number, the phone waits for the No Key Entry Timeout (Default timeout is 4 seconds,
configurable via Web GUI) before dialing out. Press SEND key or # key to override the No
Key Entry Timeout;
If digits have been entered after handset is off hook, the SEND key will works as SEND
instead of REDIAL;
By default, # can be used as SEND to dial the number out. Users could disable it by setting "User # as
Dial Key" to "No" from Web GUI->Account->Call Settings;
For Paging/Intercom, if the SIP Server/PBX supports the feature and has Paging/Intercom feature
code set up already, users do not necessarily need toggle to paging mode in the call screen. Simply
dial the feature code with extension as a normal call.
MAKING CALLS USING IP ADDRESSES
Direct IP Call allows two phones to talk to each other in an ad-hoc fashion without a SIP proxy. VoIP calls
can be made between two phones if:
Both phones have public IP addresses; or
Both phones are on the same LAN/VPN using private or public IP addresses; or

FIRMWARE VERSION 1.0.5.24 GXP1160/GXP1165 USER MANUAL Page 20 of 63
Both phones can be connected through a router using public or private IP addresses (with necessary
port forwarding or DMZ).
To make a direct IP call, please follow the steps below:
Press MENU button to bring up main menu;
Select "Direct IP Call" using the navigation arrow keys;
Press MENU to enter the Direct IP Call mode;
Input the 12-digit target IP address (Please see example below);
Press the "More" softkey to make sure the softkey selection "IPv4" or "IPv6" is correctly selected
depending on your network environment;
Press "OK" softkey to dial.
For example:
If the target IP address is 192.168.1.60 and the port is 5062 (i.e., 192.168.1.60:5062), input the following:
192*168*1*60#5062. The * key represents the dot (.), the # key represents colon (:). Wait for about 4
seconds and the phone will initiate the call.
Quick IP Call Mode:
The GXP1160/GXP1165 also supports Quick IP Call mode. This enables the phone to make direct IP calls
using only the last few digits (last octet) of the target phone's IP address. This is possible only if both
phones are under the same LAN/VPN. This simulates a PBX function using the CMSA/CD without a SIP
server. Controlled static IP usage is recommended.
To enable Quick IP Call Mode, go to phone's Web GUI->Settings->Call Features, set "Use Quick IP Call
Mode" to "Yes". Click on "Save and Apply" on the bottom of the Web GUI page to take the change. To
make Quick IP Call, take the phone off hook first. Then dial #xxx where x is 0-9 and xxx<255. Press # or
SEND and a direct IP call to aaa.bbb.ccc.XXX will be completed. "aaa.bbb.ccc" is from the local IP address
regardless of subnet mask. The number #xx or #x are also valid. The leading 0 is not required (but it's OK).
For example:
192.168.0.2 calling 192.168.0.3 -- dial #3 followed by # or SEND key;
192.168.0.2 calling 192.168.0.23 -- dial #23 followed by # SEND key;
192.168.0.2 calling 192.168.0.123 -- dial #123 followed by # SEND key;
192.168.0.2: dial #3 and #03 and #003 results in the same call -- call 192.168.0.3.
Note:
The # will represent colon ":" in direct IP call rather than SEND key as in normal phone call;