... IP network, providing signaling transform between SS7, ISDN PRI, V5.2 signaling and SIP Protocol, as well as media transfer between ... : Called/Calling party number translation, second stage dialing, Auto dialing with DTMF, Ring Back tone;·Flexible call routing management; Capacity:·A ... 1U equipment can have 2 independent VoIP modules;·Each Module contains:-1~4 E1;-128 G.711 Channels;-64 G ...