Hello All,I recently bought Plantronics HW251N headset with the A10 adapter. When I connect the headset into the 7960's headset port, I don’t hear a dial tone. When I try plugging it in 7960's handset port, it does work. Also, I tried with different ...

Hello,I had a phone configured in CUCM and it is registered. Then I did factory reset on my phone and that was working well for a while. Now, my phone suddenly shows ''REGISTRATION REJECTED''. Also, I checked the DNs and all those stuffs and everythi...