[Ekiga-list] Can't call sip:500 at ekiga.net "proxy authentication required"

[Ken Booth]

Hi all,

Sorry if this is a dumb question, but I'm new to using SIP ...

I've setup an Asterisk server, with X-Lite 3.0 SIP softphones. I can 
successfully call any PSTN number using my Asterisk dialplans, I can 
call myself at sip:20 at myasteriskserver.co.uk and I can even call some 
other companies e.g. sip:555 at didww.com

My X-lite 3.0 config is set with a "Domain Proxy" of "target domain"

However, whenever I try to make a test call e.g. to sip:500 at ekiga.net I 
get the error "Proxy Authentication Required"

I also get the same error when I try to call my sipgate account using 
sip:1234567 at sipgate.co.uk, yet making a PSTN call to  (area 
code)-123-4567 works (routing from PSTN to sipgate to my Asterisk server 
to my X-lite SIP phone).

Also, why don't I see anything happening on my Asterisk console, when I 
call sip:1234 at domain.com?

I've read some stuff about SER, is this what would handle SIP calls 
which appear to be bypassing my Asterisk server?

Many thanks,
Ken.