Resolve Yealink T53W Web Interface Access Issues with Verizon-Provided Phones

Hey guys, so for Queens Oral and maxillofacial surgery, they have some Yealink T53W phones, they are trying to access the web interface of the phone (by putting the phone IP on browser) but it doesn't load, it keeps saying refused to connect, tried to disable firewall, av, tried with https:// / http:// but same, rebooted the phone, same thing, can't get the webui to load, this phones were provided by Verizon at some point in time but they claim that they are not locked in any way, also tried other pc, browser, same thing. there are several yealink phones on the network but is doing the same for all of them, and they need to access to modify something on the phone queues any thoughts what to do here? I also tried browsing with her through the options on the phone itself, but could not see anything related to the webui of the phones

If you do netscan , does it show port 80 open on those phones/IP's? o.o Also check

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let me check that 👀

you can try https://username:password@phoneIPAddress web server must be enabled on the phone and check for ip conflicts

cmd: arp -a [ip] if there is duplicate/conflict it will show more than 1

how about resetting a phone to the factory default?

yeah, none of the above worked, there is no web server anywhere on settings, also, no conflict, apparently, they might have factory reset the phones at some point in time for the same issue, and did not help either, but I will confirm and see 🫠🫠

Verizon provided the phones = Verizon troubleshoots the phones? Am I wrong? 🐸

I would think the same, so apparently they use Verizon for phones, but it forwards to a Ringcentral queue, and they need to configure stuff that requires to login on the webui, but they have not been able to for a while and verizon can't help or could not help, I even factory reset a phone, and didn't work :D 😵‍💫

can it possible use some specific ports?

but even if thats the case, how would we determine it...

and the phone gets the IP address no issues, right?

I don't think it does, we did not see anything on settings, also netscan shows no port, and yeah, all phones are working fine, no IP issues, they get an IP just fine, is just that you cannot access the webui, so not sure what the deal is with these phones lol

can it be possibly using a custom firmware that locks it down for Verizon only?

I was thinking something like that, but they claim that is not the case (office talked with them a few times) I guess its possible... I can try talking with them and see where that takes me

i assume you checked that already?

yes, she sees no "web server" option anywhere in the phone settings, I went through each option with her 🫠

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for some models in network setting as you go down ( more than screen shows) there could be http or https which you can enable

If the phones were provided by Verizon most likely they don't have the original firmware. Reaching to Verizon would be best option

you were right, Verizon finally confirmed the phones downloads a custom firmware once they get the service through them, locking certain features. nothing to do

ISP 💩