I use PJSIP for ios, when VoIP call has interrupted by GSM call, i put the call on hold then after GSM call end i unhold the call, sometime it has audio and sometime it has no audio. The call has no audio when i see following line : *ValidateRequiredFields: Unknown selected data source for Port iPhone Microphone (type: MicrophoneBuiltIn)* *Is any experienced above error or point me out the way to solve this problem * *Best* *Dao* -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20131214/fe7e02c4/attachment-0001.html>
