Hi Jeff,
I'm afraid it is not possible - the NAT traversal is based on symmetric IP traffic to be able to push inbound traffic. But if the client does not send anything, the nat bind will not be created and no inbound traffic will be accepted.
regards, Bogdan
Jeff Williams wrote:
Guys,
I'm wondering what solutions there are to this problem. We have some NATed clients making outgoing calls. The NAT traversal is done using mediaproxy and works fine. However, we have a problem with 183 responses and early media ringing sounds.
The problem is that before the NATed client starts sending out RTP data, mediaproxy doesn't know which IP and port to send the RTP traffic to. Some of the NETed clients don't start sending out RTP traffic until the call is connected, therefore none of the early media (ringing sounds) reaches the user - making it sound like dead air.
Any ideas?
Jeff
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