Matrix ETERNITY NE System Manual 925
Intercom
The Intercom feature of SARVAM UCS enables extension users to connect quickly with any desired extension,
without waiting for the called extension to answer.
• SARVAM UCS will serve an Intercom call made by an extension only if:
• the called extension is a SIP Extension (Matrix Extended IP Phone or Open SIP Phone).
• the called extension is in idle state.
• the called extension is able to identify the incoming call as an intercom call (applicable in the case of
Open SIP Phones).
• the calling extension has Intercom in its Class of Service.
• the Priority of the calling extension is higher than that of the called extension.
• On SIP extensions, SARVAM UCS supports Intercom using Call-INFO / Alert-INFO Message. For a list
of IP phones on which this feature has been tested, see “SARVAM UCS Features tested on IP Phones
of different Brands” in the Appendix.
How it works
• A’s extension number is 3001 with Priority Level ‘7’ and ‘Intercom’ feature enabled in the Class of Service.
• B’s extension number is 3003 with Priority Level ‘5’.
• A wants to quickly connect to B. A dials the Intercom feature code *5 followed by B’s number, 3003.
• SARVAM UCS places the Intercom call on B.
• B’s extension is idle at the time of the call, and the speaker of B’s phone goes OFF-Hook, creating a
speech path between A and B.
• A can now talk with B.
Feature Interactions
• Do Not Disturb (DND): If the called extension has set DND, SARVAM UCS will not place the intercom call
on the called extension.
• Privacy from DND Override: If DND as well as Privacy from DND Override is enabled in the Class of
Service of the called extension, SARVAM UCS will reject the Intercom call.
• Call Forward-Unconditional: If the called extension has set Call Forward-Unconditional, SARVAM UCS
will forward the intercom call to the forwarded destination number. The call placed on the forwarded
destination will not be an Intercom call.
• Call Forward-No-Reply: If the called extension has set Call Forward-No-Reply, SARVAM UCS will
forward the intercom call to the forwarded destination number on the expiry of the No-Reply Timer.
• Call Forward-Busy: If the called extension has set Call Forward-Busy, SARVAM UCS will place the call
on the forwarded destination number. However, this call (placed on the forwarded destination) will not be
an Intercom call.
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