E.164 – This is the recognized International standard. It is characterized by a “+” followed by a country code (i.e. “1” U.S.) and
then the specific phone number. Some phone systems do not have the ability to support this method, so do not choose this
method unless you are sure of your PBX’s compliance.
The BCM docs only make general reference to E.164. Does anyone know if the BCM is fully E.164 compliant?