Honeywell iGSMV4G Internet and GSM Communicator with Two-way Voice Transport Capability<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="aok-hidden" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> Multi-GSM platform compatibility 2G， 3G and 4GAutomatic selection of the best available GSM network4G capable using HSPA+ protocol </span></li><li><span class="a-list-item"> 256-bit AES Encryption Advanced encryption standard used for secure communications. </span></li><li><span class="a-list-item"> Integration Quick and easy installation of GSM for VISTA and LYNX controls.Dynamic Signaling with Certain Honeywell Control Panels Programmable priority and delays determine signal path. </span></li><li><span class="a-list-item"> Diagnostic LEDs Provide signal strength and status indications. </span></li><li><span class="a-list-item"> QOS Quality of Service diagnostics via AlarmNet supply vital information including when a message was received， battery voltage， input voltage， signal strength and message path. </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/51wVnJcrSFL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/418vK7I2q0L.jpg" noproxy>