
The SPA-DSP and SBC application work in conjunction to provide voice transcoding and transrating
functionalities. After the DSP-farm profiles are created, each profile is uniquely attached to a unique SBC
identifier. The SBC configuration of Call-admission-control (CAC) and DTMF internetworking has been
explained in the Cisco Unified Border Element (SP Edition) Configuration Guide: Unified Model .
Configuration Tasks
Perform this procedure to enable a SPA-DSP and define a DSP farm profile. Additionally, you can enable or
disable local voice activity detection (vad) irrespective of external configuration. For information about
SPA-DSP hardware details, managing your system images and configuration files, refer to the following:
•
Cisco ASR 1000 SIP and SPA Hardware Installation Guide
•
Cisco ASR 1000 Series Aggregation Services Routers Software Configuration Guide
•
Cisco IOS Configuration Fundamentals Configuration Guide
•
Cisco IOS Configuration Fundamentals Command Reference
Prerequisites
Complete the following prerequisites to successfully enable the SPA-DSP and to set DSP SPA in DSP Farm
mode on Cisco ASR 1000 Series Router:
•
Requires Cisco IOS XE Software Release 3.2 or a later release installed on Cisco ASR 1000 Series
Router
•
DSP SPA installed and in operational state.
Configuring a DSP Farm Profile
Execute the following steps to enable the SPA-DSP and set DSP SPA in DSP farm mode.
SUMMARY STEPS
1.
enable
2.
configure terminal
3.
voice-card slot/subslot
4.
dsp services dspfarm
5.
exit
6.
dspfarm profile profile-identifier
{
transcode
[
universal
]}
7.
description text
8.
codec codec-type
9.
maximum session
s
number
10.
associate application sbc
11.
no shutdown
12.
exit
Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Software Configuration Guide, Cisco IOS
XE Everest 16.5
408
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Configuring the Cisco DSP SPA for the ASR 1000 Series Aggregation Services Routers
Configuration Tasks