GS752TPS:Auto VLAN VOIP not working

Question

I’m trying to add an Alcatel phone IP on Netgear GS752TPS (firmware 5.3.0.36) switch. When I connect phone to the switch, the port goes to VLAN 4088 Untagged instead of Tagged.

I did a factory reset and configure from scratch without luck.

Weird thing is if I disable then enable Voice VLAN Mode, port goes to VLAN 4088 tagged ! If I reboot the port goes to VLAN 4088 Untagged.

Why ports are not going to VLAN4088 Tagged auto ?

Thanks for your support

Extract of my configuration, phone is connected to 1/g11 port, 1/g51 port is connected to another switch with ip phone server

domg1 · Answer

Hello,&nbsp;Indeed after diagnostic with the support, we disabled auto-VOIP and tagged needed ports to the VLAN VOIP.&nbsp;Regards

DaneA · Answer

domg1,

&nbsp;

Welcome to the community! :)&nbsp;

&nbsp;

Found out that you have already an ongoing support ticket with the NETGEAR Support Team. You may want to share the progress of your support ticket here.&nbsp;