I wrote my code using Cisco RTP Stream and run well.but I cannot hear voice .then I checked debug info(I use Cisco TSP 3.1) and found When CallStartTransmissionEvent, next info was TSPI_lineDrop()! WHY?Can anyone known how to do with it?Help me!Thank...

I wrote VCL6 based on TAPI using Cisco TSP3.1.My app run well. But I can't hear voice.then I test Cisco IP SoftPhone, I can hear voice.My app didn't use RTP stream just Wave Driver.Can anyone tell me why?Thanks

Hi anyone:Follow is the example included in Cisco provided athttp://www.cisco.com/univercd/cc/td/doc/product/voice/vpdd/cdd/3_1/tapi/tap_exmp.htmDWORD retExtVersion;if (bTermMedia) { TRESULT tr3; tracer->tracef(SDI_LEVEL_DETAILED, "TAC: lineNego...

Why do I get a LINEERR_OPERATIOINUNAVAIL error when I try run a Application on winnt4(sp6)+TAPI2.1?I use lineDevSpecific to set RTP Controll Stream,LINE_REPLY return following msg:TAPI device= 0 event= LINE_REPLYTAPI LINEREQUEST_UNKNOWN (0x1) error=...

Hi,all I want develop app base on Cisco TAPI, but How do I set the var m_RecieveIP and m_RecievePort in class CCiscoLineDevSpecificUserControlRTPStream? What do they mean? can anyone help me?