Why can't I make a conference call on my Nokia Lumia 525?

[Windows Central Question]

i can't make conference call on my nokia lumia 525

cant able to do make conference cal while i spoke to someone

 

[Ammlan Ghosh]

Re: i can't make conference call on my nokia lumia 525

Follow the process as describe in the help. If you get that merge button is not functioning, it implies that you need service activation from your N/W provider. I have faced the same problem while using BSNL post paid connection in INDIA. Ultimately problem was resolved by customer care personnel who activated that service.