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Problems with phone Cisco phone 7821 - phone stop working using monofone

Cisco Telephone 7821 The problem is when the call is answered on the handset nothing happens, it only works on the speakerphone. when we restart the phone the handset will resume operation.

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10 REPLIES 10
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Cisco Employee

Re: Problems with phone Cisco phone 7821

Do you happen to have a wireless/bluetooth headset connected to these phones ? Are these on CUCM or CUCME ?

Nipun Singh Raghav
"We cannot solve our problems with the same thinking we used when we created them"
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Re: Problems with phone Cisco phone 7821

I do not have a headset plugged into the phone. The phone is registered with CUCM.

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VIP Advisor

Re: Problems with phone Cisco phone 7821

Is this for all phones or single one
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Re: Problems with phone Cisco phone 7821

only one phone with this problem

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Re: Problems with phone Cisco phone 7821

Don't solved, I need help in the problem.

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Re: Problems with phone Cisco phone 7821

Don't solved Can you help me ?
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Re: Problems with phone Cisco phone 7821

Hello guys I need help from you.

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Rising star

Re: Problems with phone Cisco phone 7821

Is firmware the same for all 7821s? Are they on the same LAN? Replace handsets with another (working) phone and see what happens. You may have to RMA the 7821.

Georgios
Please rate if you find this helpful.
Highlighted

Re: Problems with phone Cisco phone 7821

Is firmware the same for all 7821s? Are they on the same LAN? Replace handsets with another (working) phone and see what happens. You may have to RMA the 7821.

 

Is firmware the same for all 7821s? Yes is the firmware:cmterm-78xx.12-0-1-11.k3.cop.sgn

Are they on the same LAN? Yes

Replace handsets with another (working) phone and see what happens.   

I already changed handset but the problem continues ie when I take the handset off the hook the connection stays on the speakerphone.
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Rising star

Re: Problems with phone Cisco phone 7821

You should RMA the IP phone.

Georgios
Please rate if you find this helpful.
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