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.
Symmetric Broadband, a Peer 1 Network company, was founded to provide a high performance VoIP network utilizing Peer 1`s facilities and fully redundant dedicated IP network.