Rotary Cellphone
justine-haupt.com
Rotary Cellphone
1–10 of 172 posts
Re: Rotary Cellphone
#2This is seriously cool! The device has an amazing set of features and functionality.
I am a bit surprised about the short battery time. I would expect that, without a display, the battery would last several weeks under normal usage.
Re: Rotary Cellphone
#3This is seriously cool! The device has an amazing set of features and functionality. I am a bit surprised about the short battery time. I would expect that, without a display, the battery would last several weeks under normal usage.
There's a paper display on the back. This is amazing.
Re: Rotary Cellphone
#4This is seriously cool! The device has an amazing set of features and functionality. I am a bit surprised about the short battery time. I would expect that, without a display, the battery would last several weeks under normal usage.
There's a paper display on the back. This is amazing.
The display takes next to no power when not changing.
The problem here is potentially a software bug. The cellphone radio probably is not getting put to sleep as long as it could be, and that's about 100 mWh.
Re: Rotary Cellphone
#5> the battery lasts almost 24 hours
It seems like for hobby projects it's really hard to get good battery run times. I wonder why that is. Is is difficult to get everything into the appropriate sleep modes, or are hobbyist parts just that much more power hungry?
Commercial feature phones have stand by times measured in weeks.
Re: Rotary Cellphone
#6Calling this open source is a bit of a stretch. At the heart of this phone there is a huge proprietary dependency (the Adafruit FONA module).
Re: Rotary Cellphone
#7On a slightly more practical note, if you want a rotary VoIP desk phone, there's a few models of Grandstream ATAs that understand pulse dialing. They can be registered to Asterisk as normal SIP clients. $20 for the ATA plus $20 for the phone, plus your time to do the software configuration.
https://www.ebay.com/itm/Vintage-Black-Rotary-Phone-Telephon...
Re: Rotary Cellphone
#8On a slightly more practical note, if you want a rotary VoIP desk phone, there's a few models of Grandstream ATAs that understand pulse dialing. They can be registered to Asterisk as normal SIP clients. $20 for the ATA plus $20 for the phone, plus your time to do the software configuration. https://www.ebay.com/itm/Vintage-Black-Rotary-Phone-Telephon...
> On a slightly more practical note
Why "more practical"? How is a desk phone more practical than a portable one?
Re: Rotary Cellphone
#9On a slightly more practical note, if you want a rotary VoIP desk phone, there's a few models of Grandstream ATAs that understand pulse dialing. They can be registered to Asterisk as normal SIP clients. $20 for the ATA plus $20 for the phone, plus your time to do the software configuration. https://www.ebay.com/itm/Vintage-Black-Rotary-Phone-Telephon...
> On a slightly more practical note Why "more practical"? How is a desk phone more practical than a portable one?
You can answer it for incoming calls like a normal office voip phone, without the need to worry about limited battery life or paying for a live SIM card just to have a toy to play around with. For people who already have their own SIP based IP PBX the cost of adding another phone is zero.
For outbound calls if you encounter an IVR menu (press 1 for english, etc), the ATA will translate pulse dialing into DTMF tones. Functionality I think this example is lacking.
Re: Rotary Cellphone
#10Very cool!
i concur with the whole functional simplicity thing.
But I think the dial is anachronistic, despite what's claimed; A bit like fitting your car with reigns for steering and a whip for acceleration.
The only 'functional' aspect of it is perhaps that it slows down your dialing enough (especially when your finger slips on a number, and you have to start over!), for you to think whether you really need to make that call.