Ice Guidelines; Connecting To The Rmx In Ice Environment; Dialing Methods - Polycom RMX 1500 Administrator's Manual

ICE Guidelines

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Connecting to the RMX in ICE Environment

The dialing methods that can be used by an endpoint to connect to another endpoint
depends on the ICE environment: Local, Remote or Federation.
Figure 9
Local connection - a connection between the RMX and endpoints that reside within the same
organization. For example, an endpoint in Zone A calls the RMX in Zone A.
Branch Office - a connection between an endpoint that is behind a firewall and the RMX that
reside in the same zone. The user in the Branch Office can also place and receive calls from
other enterprises and remote users. For example, Enterprise A also contains a branch office,
which in this example is a Polycom HDX user who is behind more than one firewall.
Remote - a connection between RMX that resides within the organization and an endpoint
that resides outside of the organization (on a WAN). For example, an endpoint on the
internet that calls the RMX in Zone A. In such a case, the call has to traverse at least one
firewall.
Federation - a connection between RMX that resides within one organization and an
endpoint that resides within another organization. For example, an endpoint in Zone A calls
the RMX in Zone B. The call has to traverse two or more firewalls.

Dialing Methods

The ICE protocol enables remote and federation connections using the registered user name
for dialing. The endpoint connects to the RMX by entering the RMX registered user name in
the following format:
[RMX registered user name]@[OCS/Lync server domain name]
Polycom, Inc.
ICE is available in MPM+ Card Configuration Mode (Version 7.0 and later) and MPMx
Card Configuration Mode (Version 7.1 and later).
RMX ICE implementation complies with Microsoft ICE implementation.
ICE is available only in IPv4 environment.
ICE can be implemented in an environment that includes a STUN server and a Relay
server (for example, Microsoft AV Edge server).
The firewall must be UDP enabled.
The RMX must have a unique account in the Active Directory and must be registered
with the Office Communications/Lync server.
ICE is supported only within a single IP Network Service per RMX and not in Multiple
Networks configuration.
Ensure that the RMX system SIP signaling domain has been allowed on the Lync Server
edge server to which you are federating (if your deployment does not include a DMA
system).
ICE Environment
Appendix H-Setting the RMX for Integration Into Microsoft Environment
H-3