Callgram messaging with calls APK

Callgram is an enhanced version of the Telegram app with free calls over the Internet. This is a messaging app with a focus on speed and security. It’s super-fast, simple and safe.

Callgram has enhanced the mentioned app with a fully integrated service with your contacts and phone numbers. You can call your Callgram colleagues, and leave a message if they are missing. They will be able to listen to voice messages. It has its own characteristics:

— Free call.
— SIP auto provisioning.
— VoIP solution.
— Voice mail.

But Callgram also inherits all the features that the system mentioned:
— Send unlimited messages, photos, videos and files of any type (.doc .zip .pdf, etc.).
— Multi device.
— Very quickly
— Safe.
— Cloud storage.
— Group chat.
— Exchange.
— 100% free
— Privacy