Basic Sip/VoIP Settings
SIP Proxy: voice.fluffy.sh
SIP Proxy Port: 5060
SIP Registrar: voice.fluffy.sh
SIP Registrar Port: 5060
SIP Outbound Proxy: voice.fluffy.sh
SIP Outbound Proxy: 5060
AuthUserName: Extension
AuthPassword: VoIP Password
CidName: Extension
CidNumber: Extension
You should also have a copy of this info.... somewhere. But for the stake of sounding professional, ill say in your email