My Cisco IP Phone 7821 drops the outbound call after 10 minutes.

[SintiaSanches36259]

Hi,

My new IP phone drops the outbound call after 10 minutes but the IP Phone still shows that the call is ongoing when the receiver device was already disconnected.

[Geovani]

Hi 

What is the firmware being used? 

Thanks 

Geovani

[SintiaSanches36259]

Hi,

My software is sip78xx.11-1-1MSR2-1.loads.

Thank you.

[Geovani]

Can you please upgrade to 11.3.1 and see if that makes any difference? 

thanks