iptel.org replied with 488 Not Acceptable Here. >From RFC 3261 (http://tools.ietf.org/html/rfc3261): 21.4.26 488 Not Acceptable Here The response has the same meaning as 606 (Not Acceptable), but only applies to the specific resource addressed by the Request-URI and the request may succeed elsewhere. 21.6.4 606 Not Acceptable The user's agent was contacted successfully but some aspects of the session description such as the requested media, bandwidth, or addressing style were not acceptable. Alexei On Thu, Mar 18, 2010 at 2:30 PM, martin <matelo at centrum.cz> wrote: > > Hello I am using pjproject-1.5.5 for creating SIP application for iPhone (OS 3.1.3) > I am trying to call from one account to another, I get registration, then I called make_call function, this function exits with PJ_SUCCESS but nothing happens. Can you help me? I can't find any error. > Here is my log: