# cat sip.conf
[general]
allowguest=yes
allowsubscribe=yes

[my-phone](!)
        type=friend
        context=incoming
        host=dynamic
        disallow=all
        allow=ulaw
        insecure=very

[3001](my-phone)

[3002](my-phone)

[3003](my-phone)

[3004](my-phone)

[3005](my-phone)

[siptrunk]
        type=peer
        context=incoming
        insecure=invite,port
        host=10.3.1.11