Voicemail not receiving on the phone app

Farhankp wrote:

I recently came to know that the voicemail feature is available in my region (India) and when I activated the voicemail through my carrier expecting to receive the voicemail in the voicemail tab in the phone app. But it only come in as a text SMS message asking to call a number to listen to the voicemails. I checked with my friends with same carriers and for them they do get the voicemail in their phone app and not as a text SMS message. What is the reason for this?

Ask your phone carrier the reason why, not an iphone or Apple issue.