3CX App iPhone devices not ringing

[bitwiz]

We're using an On-Premise 3CX PBX. All the firewall checks pass. I'm having a problem where iPhones running the 3CX app won't always ring. All of our android devices work properly. I read in the forum that it might be an encryption problem with Apple's push servers denying 3CX's choice of encryption method. I can SSH into the PBX if necessary. Where might I find information on what encryption is acceptable and what file to check/modify in the 3CX PBX?

 

[Alejandro_3CX]

Hi @bitwiz I wonder if you have checked the event logs in your system?

Could you please check if there is any event about the push notifications.

 

[bitwiz]

I get this... though it's for a Samsung phone.

Failed to send FCM PUSH to device samsung SM-G973U(Ext.1003). Received error from server: Status: BadGateway, Reason: Bad Gateway. Find more info at: https://firebase.google.com/docs/reference/fcm/rest/v1/ErrorCode
PUSH sender ID: 50021 09/22/2023 10:47:57 AM

It's the only error I see in the log related to push notifications, now I'm not sure what's going on.

 

[Alejandro_3CX]

it can be a networking issue where the PBX is unable to communicate with the Push servers.

 

[bitwiz]

Perhaps the Push servers were overloaded at the time, maybe it's not us?

 

[Alejandro_3CX]

You may try later, otherwise please open a technical support ticket so we can gather the logs and check further.

 

[bitwiz]

Okay, I'll watch it for a while. If it continues, I'll open a ticket. Thanks.

 

[Alejandro_3CX]

You are welcome!