Sacoin grows with IP Centrex Solution from TELES More and more network operators rely on IP Centrex Systems
Sacoin, communication network solutions provider based in Oering near Hamburg, has opted for an IP Centrex solution from TELES. This solution… →
A SIP phone is a telephone that uses the SIP (Session Initiation Protocol) standard to make a voice call over the Internet (for signaling (and uses RTP for media)). The SIP phones come with several value added services like voicemail, e-mail, call number blocking etc. There are (normally) no charges for making calls from one SIP phone to another, and negligible charges for routing the call from a SIP phone to a PSTN phone.
VoIP Glossary
