Shenzhen, Guangdong, China,
Shenzhen Roytel Technology., Ltd is a leading developer and manufacturer of VoIP equipments IP telephony services/solutions in China, starting from 2003 year. We offer wide range products including PBX, E1/T1 trunk gateway, signaling gateway/convert, ...
ip pbx, voip pbx, pbx, voip, voip gateway, e1 t1 trunking gateway, signaling gateway, softswitch, sip server, fxs fxo gateway, ip phone, video phone, ip phone system, telephone system, digital trunk, analog trunk, ss7, pri, qsig, isdn