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Re: [Linphone-users] Let's Encrypt Root certificate - Windows Phone

From: Trent Creekmore
Subject: Re: [Linphone-users] Let's Encrypt Root certificate - Windows Phone
Date: Mon, 8 Nov 2021 14:00:53 -0600
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.14.0

Here is the reason for being able to edit the default account:

The SIP address cannot be changed as it is grayed out. What happens when such a connection no longer exists?

For Android, it is technically, FOSS but Android itself has taken over so much of the market, as well is iOS. That is why you spend a lot of time on them. I am sure Linux Mobile will become more popular over time, especially with those looking at privacy.

On 11/5/21 2:22 PM, Peio Rigaux wrote:

Thanks for the response.

I'm aware of the issues you have mentioned and I will talk about it to my colleague responsible of the desktop version.

So far, why would you want to edit the default profile (as far as I know it is only intended for testing purposes) ?

I do agree that we need to put a lot of work in UI errors notifications, both in desktop and mobile versions. I do report it frequently and I will continue doing so.

If this was only about me, I would support only free OS but this is not what customers pay us for... Android and iOS are still in the top list of our commercial requests, and this takes us a lot of time (even just to follow upstream)...

Regarding Linux Mobiles support, we could eventually try to do it if we can schedule it in the backlog, but we really have too much work right now to start a such huge task...

We are searching for funders, especially for these kind of developments. So I would be glad if you could eventually give me some leads.


Peio Rigaux
Junior DevOps Engineer
Belledonne Communications, the company behind Linphone

Le 05/11/2021 à 19:44, Trent Creekmore a écrit :

Thanks for taking the time to respond.  I do enjoy the Windows Phone OS. Problem is Microsoft was trying to bridge the two different environments together (ARM and Intel), and failed at it. Notice they also bailed on the ARM Surface tablets. That is probably one of the reasons why Apple switched their desktop and laptops to a ARM based processor.

Linux mobile is starting to become popular, though they still have a ways to go before becoming stable.

The PinePhone has been popular for using those Linux Mobile OSes, and I like it myself for only $200 USD, and they recently announced a new PinePhone Pro for $400 USD.

Here is a list of the 20 different OS releases for the PinePhone. Some are based on Android, so I am sure it would make it easier to support. Since most are based on Linux, you not going to have to worry about discontinuing.

I was trying the Linux Desktop latest version 4.3.1  and it has some serious issues I guess need fixing before even trying to get on Linux Mobile.

Just off the top of my head, the first things I noticed:

Cannot edit the default profile
Cannot delete profiles even though there is a trashcan to delete them
If client cannot connect, does not report the reason to the user like other SIP clients do.

Though the desktop client needs some serious work, but I would like to see it on Linux mobile.

Back to Wndows Phone, I will probably continue to use it until  the Linux Mobile OSes become stable enough. And they are getting much more stable now days. Nearly enough to use daily. Problem is lacking of applications, though there are basic instant messing apps available thanks to open source project like Telegram, Matrix, and Jabber.

I really dislike Android, and Apple, and currently only use Android for certain apps when there is no alternative. Your advice should help me extend the life of Windows Phone for me

Thanks again,

On 11/5/21 1:04 PM, Peio Rigaux wrote:


The path to the Linphone root ca is in liblinphone/share/rootca.pem

You shouldn't use Windows Phone anymore as it has reached end of life. Linphone for Windows Phone isn't maintained anymore since years, so you could experience some issues while using it.

Sorry for that but we can't do anything about it. Everytime we tried to support a new platform (BlackBerry OS, Windows Phone) it was discontinued a few month after the Linphone port...

I somehow hope that a free software alternative to Android and iOS could gain enough popularity to be deployed in millions of units, but given all the obstacles (segmentation of alternatives, insane short life cycle, proprietary hardware blobs, dependency to hardware manufacturers) we are not out of the woods yet...


Peio Rigaux
Junior DevOps Engineer
Belledonne Communications, the company behind Linphone

Le 02/11/2021 à 18:34, Trent Creekmore a écrit :

I am still using Windows Phone 10, and the Linphone client on it.

A while back, Yealink SIP had issues with TLS using Let's Encrypt. Let's Encrypt Root certificate had expired, and Yealink had to update their firmware to get it back on, or people just could of uploaded a new one to the telephone.

I noticed Linphone client for Windows Phone is no longer connecting via TLS.

Can someone clue me in on putting the new Root certificate into Linphone so I can recompile it with the new Root Certificate?


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