SIP Instance Support

In environments where multiple phones are registered using the same address of record (AOR), the phones are identified by their IP address.

However, firewalls set up in these environments can regularly change the IP addresses of phones for security purposes. You can configure SIP instance to identify individual phones instead of using IP addresses. This feature complies with RFC 3840.

This feature is not available on:
  • VVX 150 business IP phone
  • VVX 101 and 201 business media phones