Gateway Calls - Polycom RMX 1500 Administrator's Manual

Gateway Calls

Gateway Functionality
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.
The following features and capabilities are supported in gateway calls:
• Gateway Sessions are in CP mode only.
If Video Switching is selected in the Profile assigned to the Gateway
Session, the system ignores this setting and will run the Gateway
Session in CP mode.
• H.239 Content
• FECC (IP participants)
• Recording. The Recording Link is not considered as a participant and
therefore, the gateway session will automatically end when only
one of the participants remains connected in addition to the
recording link. The video of the Recording Link is not included in the
display of the video of the gateway call.
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