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Chapter 19-Gateway Calls
Polycom, Inc. 19-5
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
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 page 19-8.
Dialing from H.323 Endpoints
Figure 19-3Dialing String and Call Flow from IP Endpoint to ISDN Endpoint
[MCU prefix in GK] - the prefix with which the Collaboration Server is registered to the
gatekeeper.
[GW Profile ID] - The ID of the Gateway Profile to be used for the gateway call and the
IVR message.
The dialing string format is:
[MCU prefix in GK][GW Profile ID]
For example, if the MCU Prefix in the GK is 91 and the GW Profile ID is 2000 enter: 912000.
Once the participant is connected to the Gateway Profile and hears the IVR message
requesting the destination number, using the DTMF input keypad, the participant enters the
number of the destination endpoint followed by the # key. PSTN numbers are identified by
an * before the number.
For example, enter 3456# for IP endpoint, or 9253456# for ISDN, or *9253456# for PSTN
phone.