Dubai new behaviour
Hi,
I'm testing now the voxalot service in Dubai and here are my new findings wrt the old ones. Conditions : 1- ATA 2100 2- Port tested 5060 and 80 3- ISP : Du 4- One side is in Dubai the other in Egypt Status: 1- The registration is always OK, and dial tone is heard. (I assume ports are open then) 2- The first call initiated by any side works perfect and the call is fine. 3- Just after this successful calls (one initiated from each side), all attempts lead to one symptom : one way audio, Egypt can hear dubai but Dubai can not. 4- The symptoms are very consistent, after 12 hours the whole cycle repeated again, 2 calls went fine originated from both side. Then one way audio again !!!! Conclusion: 1- Port are not blocked as registration is working fine and dial tone is here all the time. 2- I guess a self intelligence somewhere understands the SIP packets (RDP) and kills them. 3- After a certain timer (few hours) this killing rule is reset!!! Can you help me with suggestions to try to make it happen please? Thanks for your great help |
i heard that all voip is blocked in UAE, maybe this is the cause, but i heard that only bestip devices are working fine
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