Quad Band 32xGSM SIM Gateway--GoIP-32 SIP IP Phone Adapter-32 channels External antenna<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>SIP IP Phone Adapter-32 channels External antenna，Support IMEI change and SIM BANK32</li><li>Remote online support or phone support is available by engineer if that is necessary !</li><li>The 32-ports GSM VOIP Gateway (GoIP-32) provides the extension of GoIP1 and supports up to 32 GSM channels.</li><li>Retransmit GSM Caller ID to VoIP terminal，Call forward from GSM to VoIP and VoIP to GSM</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41dwaZq0iDL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41y0kVYTRpL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41gE8kt0hiL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41lO2fmCVqL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41Tg4lqeLUL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41vyYih3HDL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/410b2MO-BCL.jpg" noproxy>