on 01-08-2020 17:32
Solved! Go to Solution.
on 01-08-2020 17:34
You need to activate call waiting.
codes required are on this link Guide: All you need to know about O2 Voicemail 901
on 01-08-2020 17:34
on 01-08-2020 17:34
You need to activate call waiting.
codes required are on this link Guide: All you need to know about O2 Voicemail 901