Re: caller line identity
Found this.
Number Withhold (141)
Want to withhold your phone number? Just dial 141 followed by the number. That way, when you make a call, it won't display your number or reveal it if the person uses Last Number Recall.
Permanent Number Withhold (1470)
Keeps your number private - every time you make a call. Ask our customer care team to set it up for you (even if you're ex-directory). If you do want to leave your number, dial 1470 before you make the call.
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