[Freeswitch-users] Hostname vs IP in SDP

[Colin Morelli]

Hey all,

So it looks like WebRTC has issues dealing with hostnames in the SDP
instead of IP addresses. Particularly, when including a hostname in the SDP
there's no audio in either direction. This is the case in both the latest
Firefox + Chrome browsers.

This is particularly problematic for applications that are WebRTC + mobile,
now that Apple is enforcing applications to support IPv6-only networks.
Using hostnames in the record-route and SDP addresses meets the requirement
since the OS will synthesize an IPv6 address when a DNS query is performed,
but according to the documentation they strongly urge applications to avoid
using address literals in their applications.

Has anyone had success with methods to switch between advertising a
hostname vs IP address in the SDP? Or other methods for solving this
problem?

Best,
Colin
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