SIP-addressing is logical, of the same type as URL in HTTP. And the most natural – to use the electronic mail as the SIP address. There are permissible varied parameters by the address: for example, it is possible to indicate the regular city telephone number, additional telephone, and the parameters of modem connection etc.
Voicecompany provides cheap calling services to worldwide destinations. Based in New Zealand we locate all our servers in Auckland to enable best quality calls for our clients.