RealPresence Collaboration Server (RMX) 1500/1800/2000/4000 Administrator’s Guide
Polycom®, Inc. 610
[Destination number] - the destination number as alias, IPv4 address or ISDN/PSTN number.
[@domain name] - the Collaboration Server domain name as registered to the SIP Proxy
The dialing string:
[GW Profile ID]*[Destination Number, first participant]*[Destination Number,
second participant]**[destination number]......*[Destination Number, tenth
participant]@domain name
Optional:
[GW Profile ID]*[Destination Number, first participant]*[Destination Number,
second participant]**[destination number]......*[Destination Number, tenth
participant]@IP address of the Collaboration Server signaling host
Optional:
[MCU prefix in SIP Proxy][GW Profile ID]*[Destination Number, first
participant]*[Destination Number, second participant]**[destination
number]......*[Destination Number, tenth participant]@domain name
For example, if the GW Profile ID is 2000, the domain name is service.polycom.com, and the destination
number is 3456, enter: 2000*3456@service.polycom.com.
If using the IP address of the Collaboration Server signaling host (for example, 172.22.188.22) instead of
the domain name enter: 2000*3456@172.22.188.22.
To invite two participants IP: 3456 and ISDN: 9251444, enter: 2000*3456*9251444@service.polycom.com.
To invite two participants IP: 3456 and PSTN: 9251234, enter:
912000*3456**9251234@service.polycom.com.
Gateway IVR Dialing For IP Participants
Can be used by IP endpoints when the destination dialing string includes the address of the MCU only. This
is the same flow as the dialing method used for ISDN/PSTN calls, however it is less recommended for IP
participants. For details, see Dialing via Gateway IVR for ISDN Participants.

Dialing from H.323 Endpoints

Dialing String and Call Flow from IP Endpoint to ISDN Endpoint