Thank you both guys.
My set up is at present
MSS
when /^08/ then sys.Dial("003538${dst:2}@Voxalot")
passing my IP as P-src-ip: & outbound proxy 213.200.94.182
MMS Monitor shows the call outbound with the correct no
21:54:16:222: Outgoing call to sip:0868XXXXX@sip.mysipswitch.com for
ambrose@sip.mysipswitch.com.
21:54:16:332: Outgoing call to sip:0868XXXXX@sip.mysipswitch.com for
ambrose@sip.mysipswitch.com.
21:54:16:367: call from sip:ambrose@sip.mysipswitch.com to 0868XXXXXX.
21:54:16:371: Using outbound proxy of 213.200.94.182.
21:54:16:373: Switching sip:0868XXXXXX@sip.mysipswitch.com:5060->sip:003538XXXXXX@eu.voxalot.com:5060 via 213.200.94.182:5060.
21:54:17:489: Response 200 OK for sip:00353868XXXXXX@eu.voxalot.com.
21:54:20:295: Matching dialogue found for BYE to sip:77.67.57.195:5060 from 213.200.94.182:5060.
I'm not sure what that last line is...
The Voxalot plan is
1 _003538. ${EXTEN} Smartvoip Yes
At the moment I'd prefer to register with MSS if I can get it to work as I have 3 priends with ATA's too and thsi would save me a visit to reconfigure...
Hope this makes sense.
Ambrose