Konftel 300IP Conference PoE VoIP Phone SIP HD Audio With Expansion Microphone

Model: 300IP. ENUM Support E.164 (if supported by PBX). Multi-party calls: Local 5-way calls. Connection protocol: SIP 2.0 (RFC 3261 and associated RFCs). DTMF tone generation: RFC 4733/2833, SIP INFO, In-band.

eBay