Author Topic: [Solved] 5312 Phone: option 129 missing (Read 10466 times)

Landerne · « **on:** February 13, 2020, 05:03:45 AM »

Hello,

I see this error when I plug a phone.

What's happen?

Landerne · « **Reply #1 on:** February 13, 2020, 05:16:35 AM »

Forget it!

I use an injector and 5312 phone seems to be not compatible.

ZuluAlpha · « **Reply #2 on:** February 13, 2020, 08:29:50 AM »

We use power injectors all the time on 5312's and 5324's and they shouldn't cause anything like that.

acejavelin · « **Reply #3 on:** February 13, 2020, 01:48:52 PM »

"Option 129 Missing" has nothing to do with your power injector, assuming it is functioning correctly... It relates to a DHCP server configuration issue, static assignment missing for the phone, or a VLAN issue. The phone is basically saying "I am connected to the network, but the DHCP server on the VLAN is not giving me the information I need to find the phone system" so it either needs to be manually assigned (VLAN ID or ICP address) or the port it's connected to is not configured correctly.

Landerne · « **Reply #4 on:** February 14, 2020, 03:25:41 AM »

Well, followed procedure with 2 phones...

5312 IP behind injector: failed
5320 IP behind injector: OK
5312 IP directly on PoE: OK

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Author Topic: [Solved] 5312 Phone: option 129 missing (Read 10466 times)

Landerne

[Solved] 5312 Phone: option 129 missing

Landerne

Re: 5312 Phone: option 129 missing

ZuluAlpha

Re: [Solved] 5312 Phone: option 129 missing

acejavelin

Re: [Solved] 5312 Phone: option 129 missing

Landerne

Re: [Solved] 5312 Phone: option 129 missing