[SIPForum-discussion] Query on SIPp

[Ashish Garg]

Hi,
 Does anyone know while using RTP echo feature of *SIPp* why the tool
echo the RTP/UDP packets back to the sender coming on the port specfied +2?

*Statements as in Documentation of SIPp:*

*The "RTP echo" feature allows SIPp to listen to one or two local IP address
and port (specified using -mi and -mp command line parameters) for RTP
media. Everything that is received on this address/port is echoed back to
the sender. *

*RTP/UDP packets coming on this port + 2 are also echoed to their sender
(used for sound and video echo).*

** Thanks

Ashish Garg
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