The 2G GSM Band may no longer be available in the USA.
Please call 626-628-8307 before placing order.
SWG-M204G comes with 4 GSM Channels on GSM Band 850/900/1800/1900Mhz
OpenVox SWG-M20x series wireless gateways include SWG-M202G/W/L and SWG-M204G/W/L. SWG-M20X series wireless gateways support multiple codecs, including G.711U, G.711A, GSM, G.722, G.726, G.729 multiple coding. The gateways support SMS messages sending, receiving, group sending and SMS to E-mail.
The SWG-M20x series gateways are 100% compatible with Asterisk, 3CX, FreePBX, FreeSWITCH SIP server and VOS VoIP operating platform.