field of view: 180°(H)x180°(V)
Switch DGS-1210-52MP supports Auto Voice VLAN
Screen size: 43 inches
DTMF: In-Band
and playback
The Yealink SIP-T21P-E2 HD Voice, PoE or VOIP Phone Ruckus ICX Switches field of view: 180°(H)x180°(V)Product Description (Yealink SIP T21P E2) Yealink SIP T21P E2 offers HD Voice, PoE, or a VoIP phone. Audio Features > HD voice: HD handset, HD speaker > Wideband codec: G. 722 > Narrowband codec: G. 711(A ?), G. 723. 1, G. 729AB,G. 726, iLBC > DTMF: In band, Out of band(RFC 2833) and SIP INFO > Full duplex hands free speakerphone with AEC > VAD, CNG, AEC, PLC, AJB, AGC Phone Features > 2 VoIP accounts > Call hold, mute, DND > One touch speed dial,