CommPeak passes the customer’s caller ID to its carriers at all times. When configuring a SIP account (VoIP Services -> SIP accounts -> Edit account), you can choose if you wish CommPeak to pass caller ID, restrict it or override it with pre-configured setting at the SIP account configuration.

You can configure the account to respect caller ID based on SIP header “From”, “P-Asserted-Identity” or “Remote-Party-ID”.