Zello error message. "Can't establish a secure connection"

Deziel0495

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Have you guys considered this:
You can also use the new Zello Bridge software. Free users are required to generate a token, but otherwise have full access to the software. It's more complex than the legacy software however as there is no UI. It's all setup through a config file and it runs in the background as a service.
 

DCSERKITS

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Effective 25 June 2025 Zello is deprecating older Zello app versions:
  • Android app versions older than 6.0.2 (Note: newer versions no longer support Android OS versions earlier than 7)
  • iOS app versions older than 6.1 (Note: newer versions no longer support iOS versions earlier than 14)
  • Legacy PC app – all versions
These changes apply only to the free version, ZelloWork is not affected.

See here for more info and a workaround to keep older versions working: https://support.zello.com/hc/en-us/articles/36830119152397-2025-Service-Changes
The zello.exe app (in Gateway mode) was running fine until Zello implemented higher security standards and announced the deprecating of the Windows app for Friends and Family. I was running a Win 10 machine and an R1-2023 Zello- All Star box with two USB feeds, one for a serial emulator and one for audio in out, attached to CM300 mobile for access to a local HAM repester. It worked great.... until it didn't....and Zello refused to re-connect.

That brought me to trying to use a RaspberryPi 5 and the Zello Bridge API found at Github, managed by a UK HAM, Matt Melling.

I signed up as a Zello Developer and got access to their API that included keys and tokens to access the Zello server. The API is available at Github.

It's been quite the adventure. The R1 box simply would not run on Bookworm....neither the port for the serial emulator or the USB embedded sound card. I tried two different RPi sound HATs to no avail. It was always a driver issue on the RPi not being available or compatible. It's also been a challenge to find an RPi HAT with a mic jack.

I found a USB "sound card dongle" that has a 3.5mm jack for headphone, and another one for mic. It works great.

I landed on a solution that is working (so far) on the RPi. I'm using a GPIO for PTT and another one for COR. All test scripts work great. It's set up to start recording on COR for 30 seconds , then play activate PTT and play it back (all on tge bench, dummy load, etc. strictly to affirm all the hookups work. I recycled the 6 PIN DIN cable and 6 pin to 16 pin adapter from the R1 kit and use it for the Motorola CM300 and got a female 6 pin DIN panel jack for the RPi case interface. I added a Green LED to show COR active, and a Red LED to indicate PTT.

I'm attempting to follow the Github "recipe" as close as possible, but over time, some of the Github scripts have changed, and I found out the hard way that the Bookworm OS uses newer methods to do certain functions such as GPIO library.

Current status:
Electrically and audio wise, it's a great solution. It all works as it should. The problem now is access to the Zello server. If anyone is attempting a similar setup, please contact me. My contact info is good at QRZ.com, N9ATO. I can share my Zello server error messages. Zello is adamant that they will not offer any assistance for a Linux based gateway, but the Developer Dashboard has all the tools to get it going, with little to no instructions on how to use the tools. The login scripts are somewhat cryptic. It seems you need to use both a Token and a Private Key, both available on the Zello Developer Dashboard.

There is also a big difference between Zello Friends and Family (free) and Zello Work (recurring monthly fees). I realize beggers can't be choosers, but this is a hobby, and I'm an experimenter....and now a Developer. I'm grateful that Zello has an available API, they allow experimentation, and the Github authors have done a great job, but I need a better road map for login requirements.

Any and all comments are welcomed.

Steve, N9ATO
 

krz

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As in the pictures. Run the rule in the task scheduler
 

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DC31

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Deziel0495

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Are you a member of an agency that subscribes to IamResponding? If so, they have recently released a Live Audio feature in their app which has a ms delay.

Oh, I have to check that out
I have inquired about it. There are 2 packages available, It's $500 USD a year for a 1 channel license and $1000 USD for a 5 channel license. If you want to share your channel(s) with another agency, they will also have to buy a license.

It's a great feature and will soon also be paired with an in-app PTT feature, but costly for small agencies. Zello for First Responders is free, you just need to apply and be approved and your agency will have the complete ZelloWork offering for free. Zello | Emergency Response
 
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TJK50010

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I have inquired about it. There are 2 packages available, It's $500 USD a year for a 1 channel license and $1000 USD for a 5 channel license. If you want to share your channel(s) with another agency, they will also have to buy a license.

It's a great feature and will soon also be paired with an in-app PTT feature, but costly for small agencies. Zello for First Responders is free, you just need to apply and be approved and your agency will have the complete ZelloWork offering for free. Zello | Emergency Response
yeah, $500. Nah, at that price I will just buy a new portable radio. lol
 

firerick100

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Has anyone found a good alternative. I used zello to stream my scanner onto my phone. And i haven’t found anything yet.
Nope. I searched and nothin, I do the same thing as you and looking into zello bridge and that murmur thing , it’s all complicated to me , so looks like we are both gonna have to deal with it when they shut it down in august 😢😢
 

chaddiesel

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Has anyone found a good alternative. I used zello to stream my scanner onto my phone. And i haven’t found anything yet.
I've been using Discord for a few weeks now. The server can be set up in a few minutes (server in the loose sense-you just set one up in the browser-no port forwarding or anything), and you can run it in the browser using the line in/microphone without installing any software (you can install the Discord PC software, but it seems to keep your monitor awake, so I just run it in Edge). I listen with Discord in the browser and the iOS app. You don't have the ability to replay messages, but for listening on PC or mobile for free, it seems to work pretty well and can transmit only when the scanner breaks squelch. The more complicated stuff like controlling the radios is beyond this solution.
 

DCSERKITS

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I'm hacking away at an RPi 5 (Bookworm) using credentials from the Zello Developer Dashboard. This setup is intended to replace the deprecated "zello.ex" on Windows that Zello deprecated. I have all the logon stuff done through Python scripts but struggling with the audio streaming protocol (Opus) and the WebSocket function. I am determined to wrestle it to the ground. If/when I'm successful, I'll post something here and/or GitHub.

Steve
 

bunangst

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Harmony, NJ
I'm hacking away at an RPi 5 (Bookworm) using credentials from the Zello Developer Dashboard. This setup is intended to replace the deprecated "zello.ex" on Windows that Zello deprecated. I have all the logon stuff done through Python scripts but struggling with the audio streaming protocol (Opus) and the WebSocket function. I am determined to wrestle it to the ground. If/when I'm successful, I'll post something here and/or GitHub.

Steve


Andy is well known here in the forum from TTD and has had this on github for quite some time...been a few discussions about it on here.
 
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