What to do if Cisco 7906G IP Phone does not register with Cisco Unified CallManager?
If your Cisco Unified IP Phone isn't registering with Cisco Unified CallManager, first ensure that the phone is connected to the Ethernet network. Also, check if Cisco Unified CallManager and TFTP Services are running.
Why does Barge fail on my Cisco 7906G IP Phone and result in a fast busy tone?
Barge attempts on your Cisco IP Phone may fail, resulting in a fast busy tone if you are trying to barge an encrypted call and your phone is not configured for encryption. In this case, your phone will play a fast busy tone.
How to fix a Cisco 7906G when I cannot hear a dial tone or complete a call?
If you cannot hear a dial tone or complete a call on your Cisco IP Phone, ensure that you log into the Extension Mobility service. Also, if you are using an SCCP phone, you may need to enter a client matter code (CMC) or forced authorization code (FAC) after dialing. Check if your phone has time-of-day restrictions that prevent you from using some features during certain hours.
What to do if the softkey I want to use does not appear on my Cisco 7906G IP Phone?
If the softkey you need is not appearing on your Cisco IP Phone, try pressing the 'more' button to reveal additional softkeys. Ensure that you change the line state by going off-hook or having a connected call. It's also possible that your phone is not configured to support the feature associated with that softkey.
Why does Cisco CallBack fail on my Cisco 7906G IP Phone?
Cisco CallBack might fail if the other party has call forwarding enabled.
Why can't I hear a dial tone on my Cisco 7906G?
If you cannot hear a dial tone or complete a call on your Cisco IP Phone, ensure that you log into the Extension Mobility service. Also, if you are using an SCCP phone, you may need to enter a client matter code (CMC) or forced authorization code (FAC) after dialing. Finally, check if your phone has time-of-day restrictions that prevent you from using some features during certain hours.
What to do if softkey doesn't appear on Cisco 7906G IP Phone?
If a softkey is missing on your Cisco IP Phone, first press the 'more' button to reveal additional softkeys. If it is still not there, try changing the line state by going off-hook or having a connected call. If the softkey remains unavailable, your phone may not be configured to support the feature associated with that softkey.
Why does CallBack fail on my Cisco 7906G?
CallBack might fail on your Cisco IP Phone if the other party has call forwarding enabled.
Why does Barge fail on my Cisco 7906G with a fast busy tone?
If Barge fails on your Cisco IP Phone and you hear a fast busy tone, it might be because you are trying to barge an encrypted call on a phone that is not configured for encryption.
How to start Cisco Unified CallManager and TFTP Services?
To start Cisco Unified CallManager and TFTP Services: From Cisco Unified CallManager Administration, choose Application > Cisco Unified CallManager Serviceability.
General| Ethernet Ports | 2 x 10/100 Mbps |
|---|---|
| Power over Ethernet | Yes |
| Lines | 2 |
| Supported Protocols | SIP, SCCP |
| Handset | Yes |
| Volume Control | Yes |
| Protocols | SIP, SCCP |
| Headset Port | 2.5 mm |
| Weight | 2.2 lbs |
| Power Source | PoE or AC adapter |
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