A multiservice network for delivering enhanced communication services to customer devices attached to either the PSTN, such as telephones and fax machines, or devices attached to the Internet or private data networks, such as PCs or other IP devices, is presented. Enhanced services include IP-based faxing, IP-based telephony, IP-based conferencing, Internet call waiting, messaging services, such as unified messaging, and other advanced services such as find-me-follow-me, and desktop telephony. The multiservice network may be managed by a configuration manager for Internet telephony (COMIT).