The octo-line feature supports up to eight active calls, both incoming and outgoing, on a single button. Eight incoming calls
to an octo-line directory number ring simultaneously. After an incoming call is answered, the ringing stops and the remaining
seven incoming calls hear a call waiting tone.
After an incoming call on an octo-line directory number is answered, the answering phone is in the connected state. Other
phones that share the directory number are in the remoteMultiline state. A subsequent incoming call sends the call waiting
tone to the phone connected to the call, and sends the ringing tone to the other phones that are in the remoteMultiline state.
All phones sharing the directory number can pick up any of the incoming unanswered calls.
When multiple incoming calls ring on an octo-line directory number that is shared among multiple phones, the ringing tone
stops on the phone that answers the call, and the call waiting tone is heard for other unanswered calls. The multiple instances
of the ringing calls is displayed on other ephones sharing the directory number. After a connected call on an octo-line directory
number is put on-hold, any phone that shares this directory number can pick up the held call. If a phone is in the process
of transferring a call or creating a conference, other phones that share the octo-line directory number cannot steal the call.
As new calls come in on an octo-line, the system searches for the next available idle line using the huntstop chan tag command, where tag is a number from 1 to 8. An idle channel is selected from the lowest number to the highest. When the highest number of allowed
calls is received, the system stops hunting for available channels. Use this command to limit the number of incoming calls
on an octo-line directory number and reserve channels for outgoing calls or features such as call transfer or conference calls.
With the new feature, you can:
Configure only dual-line mode
Configure only octo-line mode
Configure dual-line mode and octo-line mode
Octo-line directory numbers are not supported by the Cisco Unified IP Phone 7902, 7920, or 7931, or by analog phones connected
to Cisco ATA or Cisco VG224.