Solved Phones keep going offline - Yealink T46s on Google hosted 3CX

[Michael Torfs]

We have a small setup, 3 Yealink T46S phones on a Google hosted 3CX.
After some time or after an action 2 of the 3 phones go offline.

The google VPS is on a dynamic IP address, should that be a fixed one?

I keep getting this activilty log message:
01/30/2018 9:43:50 AM - There's another STUN server that resolves to the same IP: ##:3478/UDP fk=0; ignored

Is that the reason?

In the phone provisioning I made sure the 3 phones have a different port for the "Local SIP Port of Phone" setting.
I also made sure the 3 phones have different ranges for the "Local RTP Audio Ports Start" en "Local RTP Audio Ports End" ports.

Thx for any help.

 

[Michael Torfs]

By creating mappigs with port forwarding, this would bypass the NAT service from the router right?
Static port mappings are more reliable then NAT service?
Also when the phone have reserved leases in my DHCP server?

 

[Brian Cross]

I would start with just spreading out the ports per phone and PBX delivers audio. And then re-provision.

 

[Michael Torfs]

I would start with just spreading out the ports per phone and PBX delivers audio. And then re-provision.

I can confirm this did the trick. Issue solved. Thx a lot.

 

[YiannisH_3CX]

Glad to hear the issue has been resolved. Thank you for sharing your solution