Configuring Dsp Templates; Dsp Channel Resources For Transcoding - AudioCodes Mediant 1000B User Manual

14.8

Configuring DSP Templates

The DSP Template determines the coders that can be used by the device and various
other functionalities. For a list of DSP templates and the maximum number of channels
supported by each coder, see DSP Templates. You can select a single DSP Template.
Note: If you do not configure a DSP template, the device uses the default DSP
template (i.e., Template 0).
The following procedure describes how to configure a DSP template in the Web interface.
You can also configure this using the table ini file parameter, DSPVersionTemplateNumber
or CLI command, configure voip > media general > DSP-version-template-number.

To select a DSP Template:
1. Open the General Settings page (Configuration tab > VoIP menu > Media > General
Media Settings).
Figure 14-13: Defining Single DSP Template in General Settings Page
2. In the 'DSP Version Template Number' field, enter the required DSP Template
number.
3. Click Submit, and then reset the device with a burn-to-flash for your settings to take
effect.
14.9

DSP Channel Resources for Transcoding

In addition to DSP resources (channels) required for PRI trunk interfaces, the device
provides flexibility in making additional DSP resources available for SBC and IP-to-IP
functionality. This is achieved by the following:

Obtaining DSP resources from the Media Processing Module (MPM)

"Borrowing" DSP resources from the PRI interfaces (i.e., TRUNKS module)
DSP channels are required for the following:

IP-to-IP application: Each IP-to-IP call session includes two legs, requiring two DSP
resources.

SBC application: Typically, the SBC application does not require DSP resources.
However, it requires DSP resources for transcoding, where it uses two DSP
resources.
Note: In some scenarios, the IP-to-IP application does not require DSP resources.
User's Manual
Mediant 1000B Gateway & SBC
184 Document #: LTRT-27034