I'd like to ask a few questions:
Is there a way to implement TLS, SRTP, and SIP Option messages to FMG?
Also, can I change the user agent string? I'd need to..
where do you find need to have these customizations?
FMG uses options messages internally to know whether remote server is up or not. however, these are not exposed. user-agentSIP of FMG cannot be changed. TLS/SRTP are not supported. FMG enables delivery of media over the Internet, therefore, security measures provided by FMS (rtmpe/rtmps) are reccomended for last mile encryption.
We already have a voip gateway, and its unfortunately 3rd party, so is not hosted by us. Therefore we need security on the FMG to Voip side. And that is why we'd need the other stuff too.
Thanks Pankaj, you have been really helpful during my research project. Thanks!