Three situations when MTP is needed

[Tracee Baddley]

1.  DTMF is passing incorrectly

2.  Gateway or gatekeeper is behind a proxy address

3.  ????

I can't think of the third, can you help me?

[Terry Cheema · Accepted solution]

Media Termination Point (MTP)

A media termination point (MTP) is an entity that accepts two full-duplex media streams. It bridges the streams together and allows them to be set up and torn down independently. The streaming data received from the input stream on one connection is passed to the output stream on the other connection, and vice versa. MTPs have many possible uses, such as:

• Re-Packetization of a Stream
• DTMF Conversion
• Protocol-specific usage (bridging between IPv4 and IPv6 endpoints)

– Calls over SIP Trunks

– H.323 Supplementary Services

– H.323 Outbound Fast Connect

Refer SRND:  http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/srnd/collab10/collab10/media.html#pgfId-1046314

-Terry

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