User guide

Chapter 16: Setting Up IP Extensions
212 MAXCS ACC 6.7.1 Administration Manual
• Access voice mail
• Initiate a conference call
• Record a conversation
• Barge in, listen, and coach by workgroup supervisor
Guidelines:
• If the Softswitch and HMCP Media Server are in the same server, the default
ID “00” will be the Home Media Server ID. No change is required.
• If the HMCP Media Server and Softswitch server are separated, you need to
assign IP extensions to the HMCP Media Server ID.
• If you have two or more HMCP Media Servers, you need to assign each IP
extension to one of them, based on resource usage.
• Enable 3rd Party SIP Device—If the extension is a 3rd party SIP phone or other
device, check this box. You must have a license for each 3rd party SIP device.
• Enable Fallback to Mobile Extension—When this option is checked, and the IP
phone loses its network connection, it will automatically fall back to a Mobile Ex
-
tension. The mobile extension channel must be specified from the list. This feature
is only available for an IP Extension with a dynamic IP address.
Losing network connection can happen in the following cases:
• 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 settings to assist IP phone
deployment.
In Enterprise Manager, click the Codec button. In the Codec list, six codec profiles are
pre-configured:
• G.711 Mu-Law
• Prefer G.723.1 support G.729
• Prefer G.729 support G.723.1
• G.711 A-Law
• Prefer G.711 Mu-Law support G.711 A-Law
• Prefer G.711 A-Law support G.711 Mu-Law
In Enterprise Manager, click the Servers button > IP Codecs tab. 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