178 Matrix PRASAR UCS System Manual
•In Call Appearances, define the maximum number
30
of simultaneous incoming calls that the SIP
Extension user should be allowed to receive. You can set up to 10 call appearances for a SIP Extension.
Default: 2.
When Call Appearance is set to 2, the SIP Extension can receive 2 calls at a time.
• Under Auto Sign-In, enter the Email ID of the extension user you wish to store. The Email ID can be a
maximum of 64 characters. The Email ID is used for various server features.
• Auto Sign-In parameters — Send Configuration Mail and Mail Status, are applicable only for
Mobile Clients — VARTA ADR100, VARTA AMP100 applications.
• The Send Configuration Mail button will appear only after you have enabled the SIP Extension and
configured the SIP ID, Authentication ID and Password.
• Under Authentication, enable Authentication of any or all of the following SIP Message Options by
selecting the respective check boxes:
• INVITE Request
• SUBSCRIBE Request
By default, the SIP Message Options INVITE and SUBSCRIBE are enabled.
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.
30. The calls that are routed through the system will depend on the number of Vocoder channels available. The channels supported
depends on the license purchased. For details refer to “License Management”.
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