Hi all,I am working on one AS54000 to deploy several IVR scripts. Since I need tone generator and transcoding I am using 2 T1 interface ports connected with loopback cable. The call comes to the gateway and goes to the T1, then comes back to the gate...

On Cisco AS5350 there are total 4 ports from 3/0:D to 3/3:D. But sometimes Cisco sends 'ISDN 0/-1:D:0' in NAS-Port-Name attribute. It seems there are more such calls at the time when the traffic is stronger. At this time there is smaller number of ac...

Hello,I have encountered an issue where Cisco AS5300 falls back to g711u after receiving re-INVITE whose SDP offer is identical to session's original SDP offer. Voxbone sends INVITE with following SDP:v=0o=Sippy 139030316 0 IN IP4 10.1.1.1s=sessiont=...

Hello,I have a DID provider who sends DTMF tones using payload-type 96 as opposed to a more common 101:m=audio 5960 RTP/AVP 18 0 4 8 96 100 102 103 104 105Apparently, AS5300 with c5300-is-mz.123-19.bin IOS can not negotiate DTMF transfer mechanism:m=...

Cisco 2851 is used as an IPIPGW. Initial INVITE comes from it to SIP softswitch without SDP while softswitch does not support the late offer-answer model. How can we make Cisco send SDP in INVITE?