service DID

An integral part of the service DID for outgoing calls from the PBX voip hong kong to PBX urban and intercity line is Direct Outward Dialing (DOD) or Direct Dial Central Office (DDCO) voip italy. This service is often combined with the service DID, which gives the possibility of such a precise definition of urban facilities each internal subscriber for calls to mobile networks and long distance / international. voip russia In this case, the PBX substitutes as CLI or SallerID voip israel assigned to each extension number corresponding number DID, or a total for the number of PBX DID, the call for which falls on the Secretary or the operator's call center.