Phone A can reach Phone B, but Phone B cannot reach Phone A

[Reseau Web Plus]

(04-01-2022 05:07 PM)complex1 Wrote:  

(04-01-2022 04:06 AM)Reseau Web Plus Wrote:  Hello,

I am using a grandstream UCM 6208 with 4 yealink T43U phones.

The 4 phones are configured the same way, but I have a problem with 2 of them.

Telephone A and B
Phone A can reach Phone B, but Phone B cannot reach Phone A.

Do you have an idea ?
Thanks

Hi,

If all 4 phones are configured the same way, I think you should troubleshoot the Grandstream PBX.

I made the same post on the Grandstream Forum and they tell me that the problem comes from the phone.