Grandstream Networks GXP1160 User Manual page 20

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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:
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Press MENU button to bring up main menu;
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Select "Direct IP Call" using the navigation arrow keys;
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Press MENU to enter the Direct IP Call mode;
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Input the 12-digit target IP address (Please see example below);
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Press the "More" softkey to make sure the softkey selection "IPv4" or "IPv6" is correctly selected
depending on your network environment;
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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:
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192.168.0.2 calling 192.168.0.3 -- dial #3 followed by # or SEND key;
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192.168.0.2 calling 192.168.0.23 -- dial #23 followed by # SEND key;
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192.168.0.2 calling 192.168.0.123 -- dial #123 followed by # SEND key;
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192.168.0.2: dial #3 and #03 and #003 results in the same call -- call 192.168.0.3.
Note:
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The # will represent colon ":" in direct IP call rather than SEND key as in normal phone call;
FIRMWARE VERSION 1.0.5.24 GXP1160/GXP1165 USER MANUAL Page 20 of 63