This is a Voice over Internet Protocol (VoIP) and streaming media service based on the Session Initiation Protocol (SIP) by which Internet telephony service providers (ITSPs) deliver telephone services and unified communications to customers equipped with SIP-based private branch exchange (IP-PBX) and Unified Communications facilities
ArcTEL is a direct access service provided by Arcturus International Limited, a registered telecommunication service provider in the United
Kingdom.
This service is available only in the United Kingdom, enabling low-cost international calling se