I just noticed that in my GS 502 FXS Port 1 shows:

Primary SIP Server: sip.voipowelcome.com

Outbound Proxy: (the field is blank)

FXS Port 2 shows:
Primary SIP Server: sip.voipowelcome.cpm
Outbound Proxy: sip.voipowelcome.com

How come the field for the proxy server is blank for line 1 ? yet filled in for line 2?
This is a device that is fully provisioned by Voipo FYI.