Hello,I made the upgrade to the new firmware in my ata spa 112 and after it doesn't register anymore... it alwasys writes" failed " on the voice registration in line 1 and 2... can you please help me ? thanks,Mario

HELLO,I HAVE A PROBLEM IN THE ATA SPA 112 ABOUT SIMLUTANEOUS CALLS. The ata has 2 lines,when a call falls in  line 1, the call on line 2 falls at the same time...and when I'm on line 1 and I recevive a call on line 2 the call in line 1 becomes mute a...