Polycom DOC2702A User Manual

Polycom RealPresence Collaboration Server (RMX) 1500/2000/4000 Administrator’s Guide 

Polycom, Inc.

The direct IP dialing is enabled by default. To disable it, manually add the flags 

GK_MANDATORY_FOR_CALLS_OUT and GK_MANDATORY_FOR_CALLS_IN to 

the System Configuration - MCMS_PARAMETERS dialog box and for each flag enter the 

required value (YES or NO).
For more information on flag definition, 

.

Two dialing methods are available to ISDN/PSTN participants:
•

Via  Gateway  IVR

•

Direct with automatically generated destination dial strings from dial-in strings. This 

dialing method is available from Version 7.1 and is supported on RMX with MPM+ and 

MPMx cards.

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. 

In this flow, the calling endpoint enters the dialing string that includes the access number to 

the RMX Gateway Profile. 
The endpoint connects to the RMX and is welcomed by the IVR Welcome slide and message: 

“Please enter the destination number” followed by the dial tone.
Using the endpoint’s DTMF input device such as remote control, the participant enters the 

number of the destination endpoint followed by the # key. Only one number can be dialed.
While the system dials to the destination endpoints, the participant hears the dialing rings. 

During the connection phase, the number being dialed is displayed on the screen of the 

calling endpoint. 
If the call is not answered or it cannot be completed using one communication protocol, the 

system will try to connect the endpoint using the next communication protocol according to 

the selected protocols in the following order: H.323, SIP and ISDN. 
PSTN numbers are identified separately and are dialed immediately without trying other 

connections.
If the endpoint is busy, the system will not try to connect the endpoint using another 

protocol.

YES

Dial-in call is connected using the Gatekeeper.

For flag changes (including deletion) to take effect, reset the RMX. For more information see 
"Resetting the RMX” on page

.