how to select VoIP gsm gateway or gsm E1 gateway?

gnextech
Joined: Thu 04 of Nov, 2010

how to select VoIP gsm gateway or gsm E1 gateway?

Posted:Wed 08 of Jun, 2011 (16:10 UTC)
how to select VoIP gsm gateway or gsm E1 gateway?
I'd like to know how to select VoIP gsm gateway or gsm E1 gateway,do you have any idea?
32 SIMS GSM VOIP GATEWAY Link:http://www.gnex168.com/html_products/32-Ports-VoIP-Gsm-Gateway-14.html
32 GSM E1 GATEWAY link:http://www.gnex168.com/html_products/IP-PBX-65.html