1. Support 4 audio ports to VoIP SIP.
2. Optional interface: E1/T1, FXO/FXS, GSM/CDMA/WCDMA/4G LTE, E&M/Magnet, Radio, SIP and SIP subscribers, etc.
3. Rack mountable 1U height.
4. It is mainly used in IPCC, IP Dispatching, unified communications, VoIP network, operators, and so on.
