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Gateway Calls
The RMX can be used as a gateway that provides connectivity across
different physical networks and translates multiple protocols for point-
to-point rich media communications.
The RMX supports the widest range of video and audio algorithms. It
allows sites with different frame rates, connection speeds, audio
algorithms, video resolutions and network protocols to transparently
connect with one another. It also enables multipoint conference creation
from an endpoint.
A special conference acting as a Gateway Session is created on the RMX. It
includes one dial-in connection of the endpoint initiating the Gateway
Session and one or several dial-out connections to endpoints. It provides
connectivity between the various protocols: H.323, SIP, ISDN and PSTN.
To enable the gateway functionality a special Gateway Profile is defined
on the RMX.
Call Flows
Two calling methods are available:
• Direct (IP participants)
• Via Gateway IVR (IP and ISDN/PSTN participants)
Direct Dialing
This calling method is available to IP participants only and is the
recommended method.
For details on connectivity between the ISDN/PSTN endpoint and the DMA, see
the RMX 2000 Administrator’s Guide, "Gateway to Polycom® DMA™ 7000” on
page H-1.