Cordless phone for Jio Fiber connection with Caller ID support

Raise a complaint with jio.
Seem like jio supports only single standard of caller id. Airtel supports all.
 
This looks similar to the model I have. I had to use a converter to get caller ID on airtel adsl. But it now works on airtel vdsl without that converter. Dtmf to fsk something. Check manual which ones are supported for caller ID.
 
Mine one also doesn't seem to support + and replaces it with 0.
 


Problem is Jio supports only Bellcore and ETSI standards. They do not support the Indian standard followed by MTNL, BSNL and others which has a slight deviation from ETSI DTMF. Should be pestered into doing so, after all they're doing business in India.
 
Im using this Panasonic one (really old was using with bsnl) it shows 0091. My question is will this cordless landline work fine :
Beetel or anything better under 2k
 

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