Hi, On Tue, Jul 14, 2009 at 4:31 PM, Qh guo<rashaguo at gmail.com> wrote: > Hi, > > PjSIP 1.3 said it supported large message transfer switching TCP > automatically. > > So my question is: How large can it transfer using send_request_msg() in a > call? Not sure if I got the question right. The feature of auto-switch to TCP in 1.3 is: whenever the SIP message size (that is about to be sent via UDP) exceeds PJSIP_UDP_SIZE_THRESHOLD (default value is 1300 bytes), the stack will automatically switch transport to TCP, if it fails (e.g: timeout, TCP transport not available), the message will still be sent via UDP. While maximum message size is configurable via PJSIP_MAX_PKT_LEN (default is 2000 bytes). > > For application, Does it need do extra efforts to deal with the large > message receiving. Eg: wait until the end of the message. No. > > or the PjSIP has done this for us and we just using the callback of the > PjSIP. Yes. Regards, nanang
