Gateway Calls

Dialing to Polycom® RealPresence DMA System

Two dialing methods are available to ISDN/PSTN participants calling the DMA:

Direct with automatically generated destination dial strings from dial-in strings. This option is available only to Collaboration Servers with MPMx cards.

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.

Calling a RealPresence DMA Direct with Automatically Generated Destination Dial Strings

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 Collaboration Server gateway and the truncated digits are replaced by a prefix that corresponds either to the DMA prefix in the Gatekeeper.

Call Flow from ISDN Endpoint to Polycom DMA with Automatically Generated Forwarded Dial String

Example:

The figure above shows the call flow assuming the following parameters:

First Dial-in Number

5705550

 

 

Last Dial-in Number

5705560

 

 

Use Dial-in Numbers as Destination ID

Selected

 

 

DMA Meeting Room ID

5555

 

 

Destination Prefix (DMA prefix in Gatekeeper)

26

 

 

Number of Rightmost Digits to Append

4

Polycom®, Inc.

646

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Polycom 1500/1800/2000/4000 manual Dialing to Polycom RealPresence DMA System, Example