What’s the design and production cost if at all one wanna design and manufacture his own IP phone or want to convert an old phone to an IP phone.
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I’m assuming you mean an analogue phone. You need an Analogue-Telephony-Adapter (ATA)
I really thought that it would be as easy as attaching an extra chip to the old phones. But upon seeing the reply it sounds not easy i think…
Anyways, just curious to know what all extra parts that an ip phone would have than an ordinary phone…
I think the entire problem would be solved if we find a cheaper way to provide an ip address to an analog phone…
Is assigning ip address that much hard? We just need an unique MAC for each of the phones in line…
You need everything that is in an Analog Telephone Adapter (AKA an ATA). If parts could be left out, they would have.
If it were just assigning a MAC address, apply for a range and scratch it into the side of the phone by hand.
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I would do by putting a RPi or similar computer inside. Install asterisk and some code to translate rotary to SIP.
Old phones don’t have any chips in the first place, so you can’t add an extra one. I haven’t looked at the implementation of last generation analogue phones, but I suspect that the audio processing is completely separate from any digital control logic.
Even for a late model I think you would end up replacing everything except the microphone, earpiece, speaker case and keys, even with a recent analogue phone. The labour cost of doing that, in the field, would greatly exceed the cost of a ready built internet phone.
Ordering the below:
Raspberry Pi Pico W (Latest & original) buy online at Low Price in India - ElectronicsComp.com
LM386 Audio Amplifier Module buy online at Low Price in India - ElectronicsComp.com
Please suggest me an affordable microphone and Speaker for my project. No audio clarity required as it will not be the same at the end of the project. (I will replace with High-End Microphone and Speakers later)
Find some suitable microphone and then 3D print something to adapt it to the fit where the original one went. Same for the speaker, find the largest one you can fit and print something to hold it in place. Or, possibly the original speaker might work.
I don’t know where you are going with this. First you want to turn an analog phone to an IP phone but then you are also asking to provide an IP address to an analog phone, which in other words is the equivalent of changing the entire analog telephone network. I have news for you: The entire phone system in the entire world is digital already (IP based)… I haven’t seen a working analog phone in years but if you somehow know people who still use them is only because their last mile is analog and it would only be for two reasons: 1. Their analog last mile is too much work/expensive to change and 2. They haven’t yet called their phone company to cancel their phone line and get a cell phone. An analog PBX also enters within the definition of last mile.
In any case, a real first step for you is to google “differences between analog and digital systems” I guarantee you it will somehow address many of your questions.
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