Datasheet

Configuring Voice Ports
Configuring Digital Voice Ports
VC-64
Cisco IOS Voice, Video, and Fax Configuration Guide
Cisco AS5300 Universal Access Server
Codec support on the Cisco AS5300 universal access server is determined by the capability list on the
voice feature card, which defines the set of codecs that can be negotiated for a voice call. The capability
list is created and populated when VCWare is unbundled and DSPWare is added to VFC Flash memory.
The capability list does not indicate codec preference; it simply reports the codecs that are available. The
session application decides which codec to use. Codec support is configured on dial peers rather than on
voice ports; see the “Configuring Dial Plans, Dial Peers, and Digit Manipulation” chapter in this
configuration guide.
Cisco AS5800 Universal Access Server
Selection of codec support on Cisco AS5800 access servers is made during dial peer configuration. See
the “Configuring Dial Plans, Dial Peers, and Digit Manipulation” chapter in this configuration guide.
Cisco 7200 Series and Cisco 7500 Series Routers
On Cisco 7200 series and Cisco 7500 series routers, codec complexity is configured on the DSP
interface.
Note Check the DSP voice channel activity using the show interfaces dspfarm command. If any DSP
voice channels are in the busy state, codec complexity cannot be changed. When all of the DSP
channels are in the idle state, changes can be made to the codec complexity selection.
To configure the DSP interface, use the following commands beginning in privileged EXEC mode:
Command Purpose
Step 1
Router# show interfaces dspfarm
Displays the DSP voice channel activity. If any
DSP voice channels are in the busy state, codec
complexity cannot be changed.
When all of the DSP channels are in the idle state,
continue to Step 2.
Step 2
Router# configure terminal
Enters global configuration mode.
Step 3
Cisco 7200 series
Router(config)# dspint dspfarm slot/port
Cisco 7500 series
Router(config)# dspint dspfarm slot/port-adapter/port
Enters DSP interface configuration mode. The
arguments are as follows:
• slot/port—Specifies the slot and port numbers
of the interface.
• adapter/port—Specifies the adapter and port
numbers of the interface.