Matrix PRASAR UCS System Manual 11
The key features of the VoIP Interface are:
• Up to 99 SIP Trunks - for Proxy as well as Peer-to-Peer (non-Proxy) calls.
• Up to 2100
1
SIP Extensions.
• Upto 550 simultaneous IP-to-IP calls (with Direct RTP/ RTP Relay).
• Upto 124 simultaneous Transcoding calls.
• 64 simultaneous IP call legs for one NX DBM VOCODER64 module installed.
• 128 simultaneous IP call legs for two NX DBM VOCODER64 modules installed.
• Selectable Network Assignment (Connection Type) - Static IP, DHCP, PPPoE.
• Selectable DNS - Automatic and Static.
• Dynamic DNS for SIP devices in public network.
• STUN.
• TCP and UDP NAT Keep Alive.
•VLAN
• Symmetric RTP Selection.
• MAC Address Cloning option.
• Send CLI Option for outgoing calls
• Selectable DTMF - RTP (RFC 2833), SIP Info, InBand
• Flash Detection using SIP INFO and RFC2833.
• Broad Voice Codec Selection: G.723, G.729 AB, GSM FR, iLBC - 30 ms, iLBC - 20 ms, G. 711
µ-Law, and
G. 711 A-Law.
• Quality of Service - SIP DiffServe/ToS, RTP DiffServe/ToS
• VoIP Silence Detection and Disconnection.
• Voice Mail Subscription on SIP Extensions.
• Busy Lamp Field Subscription for SIP Trunks.
• Upto 10 Call Appearances on SIP Extensions.
• Registration of SIP Extensions from 3 different locations and Shared Call Appearance.
• Sharing the same SIP Extension number among a maximum of 3 different SIP devices using Share Call
Appearance functionality.
SIP Trunks
The SPARK200 platform when used with PRASAR UCS Application SME/ ENT supports a maximum of 99 SIP
Trunks, allowing you to subscribe to as many as 99 different Internet Telephony Service Providers (ITSP) or peer-
to-peer connectivity with multiple end SIP devices.
SIP Extensions
SPARK200 platform when used with PRASAR UCS ENT Application supports 2100
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SIP Extensions which can be
registered with the in-skin SIP B2BUA.
Any SIP-enabled device like an IP-phone, a Softphone, analog phone adapter can be registered and function as
the 'SIP Extension' of the PRASAR UCS.
SIP Extension users can make and receive calls from and to other extensions of System and external numbers
over SIP trunks. You can also connect the Standard and Extended IP Phones offered by Matrix as SIP Extensions.
A SIP Extension can be registered with PRASAR UCS from three different locations. This helps the organization to
overcome geographical distances and reduce call costs.
1. PRASAR UCS SME Application supports 250 SIP Extensions.
2. PRASAR UCS SME supports 250 SIP Extensions.
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