USED-B bull 2 SIP lines bull 6,1 cm ( 2,4 inch ) color display with a resolution of 320 × 240 bull HD audio bull User-friendly menu with help function bull Power supply via power supply (power supply included) bull Handset (HS) / hands-free calling (HF) / headset (HP ) bull Desktop / Wall Mount bull Economical and environmentally friendly packaging bull Industry standard certifications: CE / FCC High interoperability - Compatible with major platforms: 3CX, Asterisk, Broadsoft, Elastix, Zycoo, etc.bull 2 SIP Lines