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Nortel BCM50 Release 3.0 SIP Configuration Guide
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4.5 Port Ranges
Configuration Æ Resources Æ Telephony Resources:
Select “Port Ranges” and use the values shown below. The default RTP ranges
are from 28000 to 28255. This range is used for fax (T.38), digital phones and
analog phones. The media gateway port ranges are configurable.
Figure 18: Media Gateway Port Ranges
The BCM50 IP phone’s RTP and RTCP port range are 51000-51399. Each IP
phone call uses two ports. The default port range for RTP and RTCP are not
configurable.
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