Send my net call ID: Yes (To display SIP CID)
Internet call waiting: Activated (To allow SIP call waiting)
Internet call alert: On (To be notified of incoming SIP call.)
Default call type: Internet (To always try to call using SIP first, if SIP fails it tries a cellular call)
We will create a base profile for our home location.

Profile name: <SIP-NAME>
Service profile: IETF
Default access point: <SIP-AP>
Public user name: sip:<SIP-USER>@<SIP-HOST>
Use compression: no
Registration: Always on
Use security: no
Proxy server address: sip:<SIP-HOST>
Realm: asterisk
User name: <SIP-USER>
Password: <SIP-PASS>
Allow loose routing: Yes
Transport type: Auto
Port: 5060
Registrar serv. addr.: sip:<SIP-HOST>
Realm: asterisk
User name: <SIP-USER>
Password: <SIP-PASS>
Transport type: Auto
Port: 5060
Name: <SIP-NAME>
SIP profiles: <SIP-NAME>
We will copy an existing SIP profile for use in a new location (on a new Access Point)
Profile name: <SIP-NAME>(<SIP-AP>)
Service profile: IETF
Default access point: <SIP-AP>
And again..
WARNING!!! It could modify your settings and disable all your account's automatic connection settings so you will never be reachable by SIP !!!
[<SIP-USER>]
type=peer
username=<SIP-USER>
host=dynamic
secret=<SIP-PASS>
dtmfmode=rfc2833
insecure=very
canreinvite=no
nat=route
qualify=yes