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Topic # 237679 13-Jun-2018 05:27
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I'm looking for a solution to enable me to use an older smaller android phone while I'm in my workshop space without having to shut off my phones and change SIM card all the time. The aim is to be able to answer or make calls and keep my shiny new phone safe, along with better reception. The cell reception is poor in my workshop.


There is a hardware solution call X-link BT that is basically a bluetooth to PSTN adaptor that I could use a DECT phone with that would do the job.


I have Linux, spare old android phones and good WiFi coverage over the workshop areas. I've been looking to see if there are any apps or solutions that use bluetooth or USB connection to Linux laptop to carry the call over to another phone but haven't found anything.


There must be a way to carry the voice stream from my mobile onto WiFi to another WiFi enabled phone device to have the second phone act like the primary phone for receiving and making calls.


Anyone know of anything or can offer ideas?

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670 posts

Ultimate Geek
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  Reply # 2034756 13-Jun-2018 07:46
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Uniden used to have a Dect phone that you used to pair your cellphone via bluetooth.


If your cellphone was in range of the base station the dect phones would ring. there are Dect range extenders for other brands I am not sure of uniden.


I dont know if they are still made or sold but I think Warehouse Stationery used to sell them.



I know enough to be dangerous

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  Reply # 2034759 13-Jun-2018 08:05
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Thanks John. I'll look into the Uniden option. I'm trying to make use of what I already have without buying more stuff, however I'm getting the feeling the quickest answer is, buy more stuff.


Thanks again. Steve

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Ultimate Geek
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  Reply # 2036245 13-Jun-2018 22:35
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Somewhere I have an XLink BT - and can confirm that it worked really, really well.  I have no idea how well it will work with current bluetooth phones.


I've also had the uniden bluetooth link phones ( - from memory they worked, I'm not a big fan of uniden phones.


I have attempted to use Asterisk and chan_mobile (a bluetooth bridge module for asterisk) - but have abandoned it as at the moment I just cannot get it to be stable.


Depending on your mobile plan, a possible option could be to install a VoIP app on one of the older android phones, hook into a VoIP provider, and set the mobile phone to forward calls to your VoIP number when off / unanswered.  (This could be achieved with 2Talk).  It doesn't give you a outbound line through the mobile, however.


Out of those options, I would simply get a new dect phone that has bluetooth in it (from a supplier that will allow you to return it if it's flaky or doesn't work well)...



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  Reply # 2036304 14-Jun-2018 03:12
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Thanks for the ideas. Interesting to hear about your experience with Astrix. I figured it might be possible but I don't know enough to resolve issues if it wasn't an easy setup.

The one thing I like about using the Xlink is the company provides firmware updates and is actively looking a solving issues with BT. I don't think any of the DECT phone manufacturers are doing this.

Have considered forwarding but think the Xlink might be better for my needs.

Have sent you a PM regards to your Xlink.

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Master Geek
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  Reply # 2036307 14-Jun-2018 06:32
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i got this for my grandmother, and have set it up with her phone so there wasnt the hassle of taking both phones out to the garden, the cordless works quite well with the mobile link

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