call function with element still broken with own ntfy server

### Steps to reproduce

Install latest element version. no ringing with own ntfy server
Go back to Element 1.5.28 --> phone rings with own ntfy server

### Outcome

I know opening a new issue for a already open one is not cool, but people are having issues for months/years now, not only here in github, and I also know current Element is in Maintenance mode, but I would again pls ask the devs to fix the calling bug with current element version when using a own ntfy server.

Ive gathered some infos here, found out that a downgrade fixes the issue.

My issue where I gathered some infos:

https://github.com/element-hq/element-android/issues/8761

Issue with the downgrade shows it fixes the bug:

https://github.com/element-hq/element-android/issues/7690

I beg you guys to pls have a look on this again. Maintenance Mode could also mean to fix current broke funtions that are actually quiet essential. We dont want to use googles push, and we dont want to install such old versions with security vulnerabilities

### Your phone model

Appears on any phone

### Operating system version

Android 13/14

### Application version and app store

latest f-droid

### Homeserver

matrix synapse latest

### Will you send logs?

Yes

### Are you willing to provide a PR?

No