Cisco 8865 Video calling not working

[NOCExpert]

Cisco 8865 Model IP phones video calls and audio calls not working. After disabling the video capability I can make an audio calls. But we need to enable video call also. 

[Leo Laohoo]

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@NOCExpert wrote:
After disabling the video capability
But we need to enable video call also. 

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What happens if video capability is enabled?

[NOCExpert]

I can call but the other side's user answer also still ringing from my side.

[Nithin Eluvathingal]

is there a firewall in between ? if yes check SIP inspection.

2.12.0.0

[NOCExpert]

Hi

There is palo alto firewall. but we enabled policy in between these subnets application any to any. Still we need to disable SIP ALG ?

[Nithin Eluvathingal · Accepted solution]

Sip Alg must be disabled 

[Mohamed H. Abdelmotaleb]

Can you illustrate more ? cisco IP phone 8865 make video call to where ? is it registered to CUCM ? did you register it by using phone type " 8865" or you don't have device package for it and you register it by using Third party SIP device