CLI is callers line identification. You can see the number of caller on your phone before attending.
But I was surprized to know this facility on internet. What does this means?
ISPs (Internet Service Providers) give us this facilty. And if we get then our username and password is protected from unauthorized use.
Because internet will connect from our phone number and not from any other phone number. So then if one get our username and passsword he/she cannot use it (Alas!)
CLI-W Hide or Show Number
If network provide you this facility then you can hide your number from user you are going to make a call even if he/she has CLI facility.
The telephone sets enabled with CLI are labeled as FSK phone sets.
| Option | to activate press | to de-activate press |
| Hide number | # 31 # (number dialed) | |
| Show number | * 31 # (number dialed) |
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