Did you try STUN ? it is for these weird cases Tzury Bar Yochay wrote: > Hi, > > I got my pjsua_wince working great over WiFi. > > However, when switching to UMTS and try to connect to asterisk under > the following layout: > > Asterisk on 10.0.0.205 <http://10.0.0.205> > Workstation on 10.0.0.200 <http://10.0.0.200> with sjphone (ext. 200) > > Both behind a router with certain public IP. > > HTC device with pjsua_wince installed (ext. 205) and configured > properly to use the public IP and to call the extension. > > I also set DMZ on the router to eliminate NAT Issues. > > I observe the following symptom: > > Pressing call button on pjsua_wince makes the SoftPhone on the > workstation to ring but pressing answer on the softphone don't cause a > start of call. > > By running wireshark I can see that there is a query from the router > IP which reads "Who has 10.220.y.z" which I assume is the private IP > that the HTC got from the GSM provider and since 10.220.y.z is not a > "legal" IP it search inside the lan which ofcourse has no such address. > > In short, I suspect that the GSM provider provide the internal IP > instead of the public one which preven the ACK from reaching the > end-point. > > This might be beyond the scope of pjsip but I wonder if anybody have > struggled with this ip-translation issue. > > Thanks in advance > Tzury > > > -------------- next part -------------- A non-text attachment was scrubbed... Name: angelos.vcf Type: text/x-vcard Size: 346 bytes Desc: not available Url : http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20080212/abba88ca/attachment.vcf
