Making Calls Using Ip Addresses - Grandstream Networks GXP21 Series User Manual

Press Speaker button; or
Press Headset button with headset plugged in
or Press an available LINE key to activate speaker;
You shall hear dial tone after off hook;
Press MENU button to switch the call screen from "Dialing" to "Paging";
Enter the number;
Press SEND, * or # keys to dial out.
Notes:
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 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 X��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.
When dial out via paging, user can see the "call-info" header contains "answer-after=0" and "the "alert-info" header
contains "info=alert-autoanswer;delay=0" in the outgoing INVITE.
During an active call, user can see call info on LCD:
number is already saved in phonebook. When dialing DTMF, user can press round OK button to switch to call info page.
It is possible to mute the call at dialing stage by composing a number , dialing the call and pressing the mute button
before the call is answered.

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
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:
When phone is at idle state, press any number key or * key to bring up "Onhook Dialing" page;
Press round menu key or "DirectIP" softkey;
Input the target IP address (Please see example below);
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 GXP2130/GXP2140/GXP2160/GXP2170/GXP2135 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 CSMA/CD without a SIP server. Controlled static IP usage is
recommended.
shows the call lasting time; shows contact information if the