CCM 5.1 Cisco (ATA) 186 series, have Two phones line 1 & 2. At present we are using only single line . How can be able utilize second phone line on ATA. We are going to connect two analog lines.
Syed Akbar Ali
I have this problem too.
Correct Answer by James Hawkins about 6 years 9 months ago
The second ATA Line will appear as a separate device not as a second line on the original device.
To use the second port add a phone using the MAC address example shown in Kunal's post then add a directory number to the new device.