According to Voipcheap these are the settings:
SIP port : 5060
Registrar :
sip.voipcheap.co.uk Proxy server :
sip.voipcheap.co.uk
Outbound proxy server : leave empty
Account name : your VoIPCheap username
Password : your VoIPCheap password
Display name/number : your VoIPCheap username or voipnumber
Stunserver (option) :
stun.voipcheap.co.ukVoipcheap is basically an outgoing calls only service. As such is does not require registration. I use it on a Voice Gateway using the following settings:
Name voipcheap
AccessNumber sp2(sip.voipcheap.co.uk)
DigitMap (00xx.)
AuthUserID username
AuthPassword password
In this example sp2 must be configured for sip.