Hi Ashish If you have questions about TCP, then I guess that you are thinking about using UDP. I recommend that you read RFC3261 (e.g. http://www.ietf.org/rfc/rfc3261.txt) and scan for UDP or TCP.
The text below is from RFC3261 and discussed the use of TCP. 18.1.1 Sending Requests The client side of the transport layer is responsible for sending the request and receiving responses. The user of the transport layer passes the client transport the request, an IP address, port, transport, and possibly TTL for multicast destinations. If a request is within 200 bytes of the path MTU, or if it is larger than 1300 bytes and the path MTU is unknown, the request MUST be sent using an RFC 2914 [43] congestion controlled transport protocol, such as TCP. Regards Martien Ashish Kumar wrote: > Dear All, > > Pls solve a small query. > I do not understand why use TCP for SIP messages if reliability in > inherently built in SIP INVITE 200 ACK . > Is not that using TCP reliability will only increase complexity ? > In what scenarios TCP use is preferrable ? > pls resolve my query. > > Thanks & Regards, > -Ashish > _______________________________________________ > Sip-implementors mailing list > [email protected] > https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors > > _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
