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Administrator Guide for Cisco Unified MeetingPlace H.323/SIP IP Gateway Software Release 5.2.1
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Chapter 3 Configuring Cisco Unified MeetingPlace H.323/SIP IP Gateway Software Release 5.2.1
Information About Reverse Connection to the MeetingPlace Audio Server System Configuration
Note
Gateways must support the Session Initiation Protocol (SIP) Refer Method, RFC 3515, to use the
Reservationless Single Number Access feature.
Information About Reverse Connection to the
MeetingPlace Audio Server System Configuration
The Cisco Unified MeetingPlace Audio Server system can initiate a reverse connection, eliminating the
need for incoming port 5003 to be open on the Cisco Unified MeetingPlace Audio Server system. To
initiate the reverse connection, you must open port 5003 on the IP-gateway server.