What to do with the old phones?

Asterisk Asterisk Support
1

40 landline phones irukku. We are switching to VOIP. Those 40 landlines are gonna useless. Any simple way to digitise it…!!!

2

analog phones are normal still, you need an “ATA” yes? there are rack versions for all 40 of your phone units, is that what you mean?

1 Like
3

But very costly… Any other simple way like in the budget of 300-500 INR per device… Like an esp32 and all

4

On Saturday 14 March 2026 at 16:35:30, shafty wrote:

Any other simple way like in the budget of 300-500 INR per device… Like an
esp32 and all

If that’s what you want, just try a Google search for “ESP32 VoiP”…

There appear to be quitre a few similar things on Youtube, as well.

Antony.

–
A user interface is like a joke.
If you have to explain it, it means it doesn’t work.

5

Hi. Thanks. The objective is to utilise the old phones for the new purpose… possible to keep the phones as it is but using for sip interaction…

6

As mentioned you need an ATA. One ATA can run many of the phones in parallel (but maybe not 40) or use one ATA for each outside line. Many ATA’s support two lines. Grandstream, HP, and Cisco still make them. I have a Cisco SPA122 that supports 5 REN. Look on the bottom of your phone for the REN value and divide it into the ATA’s REN to determine how many phones it will ring simultaneously.