yes the test number works and I hear my own voice echo back.

Generic Service Provider - grandma
Service Provider Proxy Server sip.powervoip.com
Service Provider Proxy Server Port 5060
Outbound Proxy Server -
Outbound Proxy Server Port -
User Name name of powervoip account filled in
Password password of powervoip account filled in
does not work

status green online Register Failed: 500 Internal server error
when i log into powervoip by hand on the laptop it asks me to put in a verification code, read what is written in strange letters and then type it in.
*Access to our SIP server from your accounts is disabled by default.
You can enable this by changing the settings below.* I get this on powervoip, should I enable this?