Matrix PRASAR UCS System Manual 227
Make sure that the Authentication ID for the SIP Extension has been programmed.
• For secure conversations over SIP, enable SRTP Mode. The PRASAR UCS supports the following
options:
• Disable: PRASAR UCS uses normal RTP for transporting the speech packets.
• Optional: PRASAR UCS uses SRTP for transporting the speech packets. If the remote user does not
support SRTP, PRASAR UCS will use normal RTP for transporting the speech packets.
• If you select this option, you must configure the SRTP Media Type. You may select AVP or SAVP.
By default, AVP is selected as the SRTP Media Type.
• Forced: PRASAR UCS uses only SRTP (SAVP) for transporting the speech packets. If the remote user
does not support SRTP, PRASAR UCS will reject incoming calls from and drop outgoing calls made to
such users.
By default, SRTP Mode is Disabled.
• Assign a SIP Hardware Template to the SIP Extension. Default: 01. The “SIP Hardware Template”
contains voice quality related features such as Voice Codec selection, Tx and Rx Gains, Echo
Cancellation, Jitter Buffer and Fax-over-IP options and related parameters
There are 32 different templates to choose from. Each template can also be altered to suit your
requirement and preferences. By default, Template number 01 assigned to all SIP Extensions as well as to
SIP Trunks.
Check if the values in this template fulfill requirements of the SIP Extension. If Template 01 fulfills the
feature requirements, retain Template 01.
If a different set of SIP hardware features are to be allowed to this SIP Extensions, prepare another
template and assign it to this extension. To do this,
• Under VoIP Configuration, click the SIP Hardware Template link.
• Select a Template number, for example 02.
• Customize Template number 02 and click Submit.
• Return to the SIP Extension Settings page.
• Select the number of the Template you customized, Template 02 in the SIP Hardware Template
field.
Also see the topic “SIP Hardware Template” to know more about customizing the templates and
applying on the SIP Extensions.
• Assign a Station Basic Feature Template to the SIP Extension. Default: Template 01. The “Station
Basic Feature Template” has a set of features like Time Table, Class of Service, Toll Control, Operator,
Storage of Incoming and Outgoing Calls, Outgoing Trunk Bundle groups. There are 50 different
templates to choose from. Each template can also be altered to suit your requirement and preferences.