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jason.yeung
Beginner

RTP question

May I know the answer with the following question.

1. In Cisco Product, such as voice gateway AS5400, router , should be accept any port range with RTP by default, or only accept a prot range from 16384-   32767  However, according to the book of Cisco VOIP , it's shows the "RTP is generally configured to use UDP ports in range 16384-32767.

   Which one is correct?

2. Could be the voice gateway such as AS5400, router which to fix the RTP port number for traverse to remote gateway for transport.

1 REPLY 1
scpage
Beginner

IOS will choose a local even numbered UDP port within the range of 16384 - 32767 for RTP.

This range is not configurable.

The remote device can choose any valid udp port.