Hi
Our client using Asterisk Free PBX and when he connect to our softswich they got error “unsupported media type” and after we do trace find that he should allow all RTP traffic in his firewall
The termination carrier advice as below :
We send the RTP data to the IP address in the SIP SDP that comes from your gateway
to our switch.
Below are the IP ranges that we use for signaling and media traffic.
IPNetwork NetMask InverseMask CIDR
59.154.37.192 255.255.255.192 0.0.0.63 /26
213.166.96.0 255.255.224.0 0.0.31.255 /19
204.13.140.0 255.255.252.0 0.0.0.3.255 /22
216.53.0.0 255.255.192.0 0.0.63.255 /18
66.33.128.0 255.255.192.0 0.0.63.255 /18
206.20.0.0 255.255.0.0 0.0.255.255 /16
169.132.0.0 255.255.0.0 0.0.255.255 /16
111.235.152.0 255.255.252.0 0.0.3.255 /22
We don’t recommend that you lock down the RTP (media) traffic on your
firewall.
We recommend that you just open your RTP to the internet. i.e. allow RTP
traffic from any source IP address on our side (UDP 10000 to 30000) in
your firewall.
Anyone can help us ?