Snom SP800. Voice codecs: CNG. G.711alaw. G.711ulaw. G.722. G.723.1. G.726. G.729. OPUS. PLC. VAD. Compatible operating systems: Linux. VoIP protocols: SIPS (SIP over TLS). SRTP. SRTCP. Supported network protocols: IPv4 / IPv6 (dual stack). DHCP. NTP. LDAP. LLDP-MED. HTTP. TFTP. L2TP. TLS V1.3. HTTPS. IEEE.... Management protocols: TR-069. TR-069 Annex G (formerly TR-111). TR-369 (USP). uaCSTA over SIP. CSTA over HTTP(S). Security algorithms: HTTPS. Power source type: AC. DC. PoE. AC input voltage: 100-240 V. AC input frequency: 50/60 Hz. Width: 110 mm. Depth: 110 mm. Height: 30.2 mm