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MGC-25/50/100 MGC+50/100 - Polycom

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<strong>MGC</strong> Release Notes - Version 7.5<br />

2<br />

Table 1: New Features List (Continued)<br />

Category Feature Name Description<br />

8. IP SIP REINVITE SIP protocol allows ways of changing<br />

one or more parameters in an existing<br />

session. It is performed by sending a<br />

REINVITE request with the desirable<br />

mode to the other SIP entities in the<br />

conference.<br />

Version 7.5 supports the SIP REINVITE<br />

request sent by the remote SIP endpoint<br />

to the <strong>MGC</strong> in the following instances:<br />

• Party Media - change in the<br />

participant’s IP address.<br />

• Conference Media - change in the<br />

participant status that is informed to<br />

the conference, such as mute and<br />

hold.<br />

• Change Mode - changes that affect<br />

the conference media and may affect<br />

other participants as a result, such as<br />

change in the video protocol.<br />

• Later Video - Upgrade the SIP<br />

connection from audio only to video.<br />

9. IP SIP OPTIONS Support for SIP RFC-3261 (OPTIONS)<br />

that allows a UA (User Agent) to query<br />

another UA or a proxy server for its SIP<br />

and media capabilities.<br />

10. IP SIP REFER Support for SIP RFC-3265 (REFER) that<br />

instructs the recipient of the REFER<br />

request to contact a third party using the<br />

contact information included with the<br />

REFER request. This allows any SIP UA<br />

to send the URI of another UA to the<br />

conference and instructs the conference<br />

to create a new dial-out participant and<br />

dial to it.<br />

11. IP SIP Factory Allows SIP endpoints to create ad hoc<br />

conference and automatically connect to<br />

the conference.<br />

12. IP Microsoft LCS support This version supports multipoint SIP<br />

conferencing in a Microsoft environment:<br />

• Microsoft LCS 2005, SP1,<br />

• Office Communicator version 1.0,<br />

• Windows Messenger version 5.1,<br />

• Installed desktop and group video<br />

conferencing systems PVX versions<br />

8.0 & 8.0.1; VSX 8.0 & 8.0.3.<br />

• <strong>MGC</strong> Manager 7.5<br />

Note: This product requires purchase of<br />

a license.

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