Polycom RMX 1500 Administrator's Manual page 607

Calling a DMA Direct with Automatically Generated Destination Dial
Strings
• Via Gateway IVR.
In addition, PSTN participants can dial the Gateway IVR and can use the
MCU or DMA prefix in the gatekeeper together with the conference ID/
endpoint alias as the destination string to simplify the input. This is one of
the methods for PSTN participants to connect to a virtual Meeting Room
on the DMA. For more details, see "PSTN Dial-in Using GK Prefix" on
page 17-10.
In this configuration, the gateway session initiator enters one of the dial-in
numbers assigned to the gateway profile. This number is truncated by the
RMX gateway and the truncated digits are replaced by a prefix that
corresponds either to the DMA prefix in the Gatekeeper.
Figure 19 Call Flow from ISDN Endpoint to Polycom DMA with Automatically
Generated Forwarded Dial String
Example:
Figure 1 shows the call flow assuming the following parameters:
First Dial-in Number
Last Dial-in Number
Use Dial-in Numbers as Destination ID
DMA Meeting Room ID
Chapter 17-Gateway Calls
5705550
5705560
Selected
5555
17-27