User guide

162 AltiWare ACC 5.1 Administration Manual
• The user presses #26 to log out from the IP phone
• The server loses connectivity to the IP phone
• The IP Extension's channel is taken over by another extension
• The user exits from an IP Talk session
Once associated with a fallback mobile extension, when the network connectivity is
restored, the fallback mobile extension stays active, and the user must re-register
the phone to reconnect to the server.
Setting VoIP Codec for IP Extension
The system has a pre-configured IP range and codec setting to assist IP phone
deployment.
In the AltiEnterprise Manager/Codec profile, two codec profiles are pre-configured:
• Default—Prefer G.723.1 support G.729
• G.711—G.711 with Jitter (10 ~ 60 ms), Packet Length 10 ms
In the AltiEnterprise Manager/Servers/IP Codecs setting, three local IP address ranges
are pre-configured to use the G.711 codec profile:
• 192.168.0.0 ~ 192.168.255.255
• 10.0.0.0 ~ 10.255.255.255
• 172.16.0.0 ~ 172.31.255.255
When an IP phone registers to an IP extension, the system will check the IP address to
determine which codec to use for the IP phone.
For local IP phone deployment
If your local IP address is not in the pre-configured range, you need to add the local IP
address range into the IP Codec setting. Otherwise the system will use the Default
(Prefer G.723.1 support G.729) setting for your IP extensions.
For remote IP phone deployment
If you do not enter the remote IP phone's IP address into the IP Codec table, the system
will use the Default (Prefer G.723.1 support G.729) setting. You can change the Default
to Prefer G.729 support G.723.1, if desired.
To set up the VoIP codec and define IP address ranges, see “Setting VoIP Codec Profiles”
on page 275 and “Assigning Codec Profiles to IP Addresses” on page 278.