... the convenience and cost advantages. Based on embedded technology, the ZX50 provides a solid, uniform platform for voice as well as data network ... provides many advanced functions including voice mail to email, web management and etc. Designed to run on a variety of VoIP applications, the IP ... 711-Ulaw, G.711-Alaw, G.726, G.729, GSM, SPEEXSIP/IAX Extensions(connect with IP Phone)Zap Extensions(connect ...