[Users] PSTN Interconnect Advice

Klaus Darilion klaus.mailinglists at pernau.at
Fri Aug 5 16:24:53 CEST 2005

Adam Sherman wrote:
> I'd like some advice.
> What are people doing for PSTN connectivity when using third-party gateways?
> - For outbound, lcr with the uac module for authentication seems to be the way.

For PSTN termination, authentication on username/password is not a good 
solution. uac module also has problem with the CSeq and thus may not 
work with all PSTN gateways.

Better would be if the termination provider authenticates against the 
proxy IP address and using TCP (or TLS).

> - For inbound, either getting the providers to route DIDs directly
> using SRV or using sipsak to REGISTER seems to be a possibility.

Also REGISTER are not, as you have may to REGISTER every DID. If you 
have fixed IP addresses, a static routing using the IP address (or SRV) 
is easier.


> For DIDs, just using aliases to push the call to a user?
> Thanks,
> A.

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