Incoming calls not connecting the first time

[maurice]

Hello ,

I have an issue.
Also an 4 channel sip
4 snom DECT extensions ( STUN)
Version 16.0.4
different sip ports
When there is an incomming call the first picks up the phone, no connection, the 3 others phone's are stil ringing.
the second one picks up and he has picked up the call.
The symptoms are random, so will it be ok for weeks , and so they have it every day.

We have switched the phone's for other phone's
We reset the pbx
Build a whole new Pbx

requested info:

3Cx version 16.0493 Profesional
server: Debian 9

ip Phone model: Snom m25 DECT with the latest firmware
( But we tried Yealink DECT / gigaset DECT all with the same problem)
Provisioning method: STUN
Firewall schecker has passed.
No Custom templates on the DECT phones.

the problems are still there.

This is also the only customer that has this problem.

 

[maurice]

I am calling with my gsm to the customer, they are using only the snom dect .

 

[JohnS_3CX]

Hi Maurice,

As discussed, follow up with the support ticket and when the case is resolved feel free to share the solution here too if you wish.

 

[maurice]

ok thank you,

I will go on with the support ticket.