Polycom DOC2223A manual Microsoft-Polycom Meeting Scenarios

Microsoft—Polycom Meeting Scenarios

The New Phone Number dialog box opens.

The MGC system supports the use of a dial plan for parsing and interpreting a received number as an H.323 alias, SIP URI or ISDN number to be used accordingly by the MGC system for initiating a callback to that device.

The E.164 number (no SIP URI) is converted into a SIP URI by Office Communicator, inserted into the Refer-To field and sent in the REFER transaction to the MGC system.

For example: the user enters "1234567". The Refer-To field sent by Office Communicator to the MGC will have: "sip:1234567@domain;user=phone".

Now the MGC unit can use the dial plan, as defined in system.cfg, to parse and interpret the "1234567" string and initiate a corresponding H.323, SIP, ISDN or PSTN dial out.

The REFER request sent to MGC contains a "ms-associated-sip-uri" field that includes the invitee’s URI. The MGC system can use this information to identify the name of the new participants in notifications it sends to Office Communicator conference watchers.

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