We are experiencing a problem with inbound SIP calls. Outbound calls work as expected without problem.
I am using a Cisco AS5400HPX with 12 PRI's connected to Dialogic D/480-2T1 cards in a dialing chassis. I use a proprietary software to handle inbound/outbound calls from a call center. This software allows me to setup an IVR to answer calls and DNIS route from the last 4 of the number dialed.
As stated - outbound calls work perfectly. Inbound calls come in and look to be delivered to my equipment, but do not end up completing. I also should note, I have an AS5300 with 4 PRI's working flawlessly (inbound and outbound). Testing my internal equipment with the 5300 rules out problems with my dialogic equipment.
I had a quick look and you need to speak to your provider. First of all there are too may INVITE for the same call-ID. I am not sure why the same INVITE is repeated. That doesnt look good. Second. your gateway sends a 200 OK to the INVITE and the far end device doesnt send an ACK. The issue is down at the other end, have a word with them and let us know what they say
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