3CX include non solo App VoIP per Android e iOS ma anche un supporto per i vostri telefoni IP. 

Elenco Telefoni SIP Supportati

• Fanvil H Series: H2S, H2U, H3, H5
• Fanvil X1 Series: X1S(G/P)
• Fanvil X2 Series: X2(C/P)
• Fanvil X3 Series: X3 (S/G/SG) (Lite/Pro)/SP (Lite/Pro)/SP V2/U, U Pro)
• Fanvil X4 Series: X4(G/U)
• Fanvil X5 Series: X5(S/U)
• Fanvil X6 Series: X6-1.2/X6U
• Fanvil X7 Series: X7(A/C)
• Fanvil X210 Series: X210
• Snom D3 Series: D305, D315, D335, D345, D375, D385
• Snom D7 Series: D710, D712, D715, D717, D725, D735, D745, D765, D785
• Yealink T1 Series: T19(P) E2
• Yealink T2 Series: T21(P) E2, T23P/G, T27G, T29G
• Yealink T3 Series: T30P, T31P/G, T33P/G
• Yealink T4 Series: T40G, T40P, T41S, T41U, T42S, T42U, T43U, T46S, T46U, T48S, T48UYealink T5 Series: T53/C/W, T54W, T57W, T58A/V/W

Per una lista completa dei dispositivi supportati e consigliati vedere QUI