Call pickup is allows to answer an incoming call from another phone.
For Eg: I have three PSTN phones .If i made a call from one pstn to another pstn i can able to pick up the call from the third pstn phone by pressing *9(extension of second pstn) .But here what’s the problem is once i press *9 it is automatically goin to voice mail.can any one please tell me any solution for this problem.