Calls Dropping Randomly at 30 min

[racostamnet]

Hello, pretty new to everything related to 3CX my system is running on Linux hosted Azure. My provider is named Zytech.

Im getting calls dropped when they hit the 30 minute mark. But it only happens sometimes. I'd say this happens 1 out of 7 times calls are longer than 30 minutes. I washaving a look at the parameters but there is no setting referring to this.

Anybody else had this issue? Thanks in advanced!

And excuse my english

 

[Alphabetic]

If you run a firewall test is it passing?
Are you using a supported SIP provider?
How is your endpoint provisioned?

There are a lot of posts on here in relation to this problem, i would recommend you do a search.

Typically, this happens when the SIP provider sends an INVITE and doesnt receive an ACK

 

[racostamnet]

Hello, thanks for the reply. Firewall checks passwith no issues, we're using an unsupported SIP provider and phones are provisioned via Direct SIP.

The issue ocurred from the iPhone 3CX app if that changes anything, and does not happens everytime a call hits 30 minutes either.

Thanks in advance