I had been pulling my hair out trying to figure out why my Incredible wouldn't work with the network extender I recently bought. Hightech answered and solved my problem. When on EVRC B, I saw better signal and could receive calls, but could not make calls. When talking with VZW tech support I asked if using the EVRC B would affect that. He was a little miffed and said you shouldn't be into that section of the phone. I switched to plain EVRC, but forgot that there were three settings I had changed to EVRC B; Home Page, Home Orig, and Roam Orig. If any of these are set to the "B" option, you will not be able to make calls. Also after you change the EVRC settings, make sure to press the Menu button just under the touchscreen and press commit change or commit modification to make sure it accepts the change. UPDATE: After a message from dsauch I did a little experimenting. Home Page and Home Orig CAN be set to EVRC B, but Roam Orig can NOT be set to EVRC B for the network extender to work. Thanks dsauch for that info. When I was trying to get the network extender to work, I believe my Home Orig and Roam Orig were still set to the B option. I could've tried all different variations of EVRC/EVRC B to get the NE to work, but I just wanted to be able to dial out. So again, if you want to use EVRC B and a network extender, make sure that Roam Orig is set to EVRC (not EVRC B). Home Page and Home Orig can be set either way. Thanks again dsauch.