[Asterisk-Users] Asterisk compliance with RFC 2617 (qop, nc and cnonce) - in relation to sipcall.co.uk

[Dave Cotton]

On Mon, 2003-11-03 at 15:02, nathan wrote:
> Hi All,
> 
> I am attempting to setup Asterisk with sipcall.co.uk. They use Intertex
> kit to provide the SIP service. Unfortunately Asterisk cannot seem to
> authenticate against Intertex. Having provided SIP debug info the
> provider has informed me that Asterisk does not appear to support 'qop',
> 'nc' and 'cnonce' which are used to stop replay attacks.
> 
Went up the same route myself, and got the same answers from Sipcall and
Intertex.  The only time I was ever able to connect to Sipcall, even
with an Intertex modem in place at my end, was using MS Messenger.

The question I now ask is why only Intertex based systems require this?
Asterisk registers with other providers, FWD, sipphone, iptel, nikotel
etc... Do they suffer replay attacks?
-- 
Dave Cotton <dcotton at linuxautrement.com>