Specifications

VoIP Configuration
AltiContact Manager Administration Manual 9-5
9. VoIP
Configuration
Setting VoIP Codecs
The default codec for static IP extensions is G.711 with 64 kbps for voice
packets. This is appropriate for lease lines or high-speed connections. The
default codec for dynamic IP extensions is G.723 with 6.3 kbps. This is
appropriate for internet connections. For voice, G.723 AB uses 8 kpbs.
G.711/G.723/G729 bandwidth requirements for Ethernet:
— G711 10ms packet frame ≅ 110 kbps
— G711 20ms packet frame ≅ 87 kbps
— G711 30ms packet frame ≅ 80 kbps
— G723 30ms packet frame 6.4k rate ≅ 22 kbps
— G729 20ms packet frame ≅ 31 kbps
— G729 30ms packet frame ≅ 24 kbps
Note: Bandwidth for WAN varies depending on the type of WAN
connection. Bandwidth requirements for WAN should be less than
Ethernet requirements.
You can change these default settings for AltiContact Manager-to-
AltiContact Manager connections using the VoIP Codec Configuration tab.
To display the VoIP Codec Configuration tab:
•From the System Management menu, Select VoIP Configuration...
and click the VoIP Codec Configuration tab. Or,
• Use the drop-down list next to the System icon, select VoIP
Configuration... and click the VoIP Codec Configuration tab.