What's the meaning of cause code e2e treatment BYE times out?

4G LTE
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1

Hi Experts,
What’s the meaning of cause code e2e treatment BYE times out and reason for that?
For VoLTE call.

2

Bye can be from UE or network, several reasons, like:

  1. User cut the call - user initiated
  2. RTP timeout trigger - network initiated
3

Can MTU size be the reason?

4

What is reason you can see in bye message content.
Like in below picture.

image
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