On 06/15/2011 07:55 AM, fatemeh shapouri wrote: > Hi, > I'm using PJSIP (last edition) in my iPhone application for making SIP > call, I have one problem with this, I built lib with Xcode_SDK 3.2.4, > and I able to register and call to others, but in iPhone4 when My > application is running in task bar(background), other Sip applications > are not able to make call, So when I remove my app from task bar and > use them, there is not any problem. > I don't know how can I fix it, but I guess PJSip doesn't support > multitasking for release I/O device in background. If it's true please > let me know that I wait for new version of PJSIP. > > So thanks Just a lucky guess: Maybe it is because the SIP port (5060) is still in use by your application? Regards -- Dipl.-Ing. (FH) Andreas Wehrmann Software Development -------------------------------------------------------------- Center Communication Systems GmbH A-1210 Wien, Ignaz-K?ck-Stra?e 19 Sitz in Wien FN 796 88p, Firmenbuchgericht Wien www.centersystems.com Tel.: +43 (0) 190 199 - 3616 Mobile: +43 (0) 664 884 75916 Fax: +43 (0) 190 199 - 2110 E-Mail: a.wehrmann at centersystems.com