Want to protect your cyber security and still get fast solutions? Ask a secure question today.Go Premium

x
  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 174
  • Last Modified:

RTP Real Time Transport Protocol SIP

Hi,
I have communication between client 1 and client 2 over SIP phones established. The signaling part is done and media is flowing between the SIP client 1 and 2. Now suppose the client 1's ip changes or port changes in between media flow during RTP . How will this be handled so as the communication continues properly.

Thanks
0
Rohit Bajaj
Asked:
Rohit Bajaj
  • 2
2 Solutions
 
PerarduaadastraCommented:
If the IP address of either endpoint changes during the call then the call is lost because the traffic can no longer find its destination. IP addresses shouldn't change during a call anyway; if they do this indicates a fault somewhere.

The range of ports used by RTP is determined when the session is established and, again, won't change unless there is an error.
0
 
Rohit BajajAuthor Commented:
I am bit confused here. As to why cant client1 inform client2 about the change in ip address or port ??
Client1 is having the direct ip of client 2
0
 
PerarduaadastraCommented:
Why would there be a change in IP address of either client during the call?
0
 
José MéndezCommented:
Beyond the reason why a client needs to change its IP, the SIP protocol is not meant to handle such situations. That does not mean it can't be use to manipulate the media sessions, however a renegotiation needs to occur for the other endpoint to know what the new IP, codec, DTMF method, port and such will be used, that part would signify a brief period of no media.
0

Featured Post

What does it mean to be "Always On"?

Is your cloud always on? With an Always On cloud you won't have to worry about downtime for maintenance or software application code updates, ensuring that your bottom line isn't affected.

  • 2
Tackle projects and never again get stuck behind a technical roadblock.
Join Now