A modern voice communication SIP protocol is widely used to make calls in the Internet. However, the final subscriber is mostly interested not in the very SIP standard but in the SIP telephony conception based on it.
One one hand, all traditional conveniences for making telephone calls, compatibility with the international subscription base and the procedure of dialing numbers are kept.
COMTALK delivers DID/DDI numbers & termination in Denmark (but also most of the world) We offer SIP and are also MVNO, which means low cost calls to the Danish Celluar networks