16 Port GSM Gateway

We are offering 16 port gsm gateway,
nh516 gsm/cdma/wcdma series voip gateway is a multi-functional and high performance product, which is designed with advanced embedded technology . Nh516 series is able to process traditional voice call service and internet data service. Compare to the nh508 gsm/cdma/wcdma series voip gateway, nh516 series adopt new hardware and software structure, which supports up to 16 concurrent calls and perfectly support g729a/b/e , g723.1, g.711 a/u law and ilbc codecs at the same time.
2. Product configuration and features
nh516-16/nh516-64 gateway is an independent unit with a black metal shell. Inside the packaging box are the following items:
1． one nh516-16/64 gateway
2． switching power supply and one wire
3． one usb cable
4． one network cable
5． 16 suck antennas
2.2 product features
support g729a/b/e,g723.1,g.711 a/u law,and mixed g729 and g723 ilbc auto-selecting
sbo(saving bandwith optimization)
proxy encryption solution for ip block
support sim bank
sim card rotating(nh516-64)
vpn
solution to solve the sim card blocked
(1) accumulated call duration checking
(2) accumulated connected calls checking
(1) accumulated calls checking
(2) consecutive failed calls checking
(3) consecutive no-alert calls checking
(4) consecutive no-answer calls checking
(5) consecutive no carrier calls checking
(6) consecutive short-duration calls checking
station intelligent switching
sms send and receive
sim card remote insert.