Skype, Viber whatsapp এর মত আরো যত software

Hangouts
http://www.google.com/hangouts/

Qq international
http://www.imqq.com/

Viber
http://www.viber.com/en/

Line
http://line.me/en/

KakaoTalk Messenger
http://www.kakao.com/talk/en

Facebook Messenger
https://www.facebook.com/mobile/messenger

Groupme
https://groupme.com/

Kik Messenger
http://www.kik.com/

Wechat
http://www.wechat.com/en/

Tango
http://www.tango.me/

fring
http://www.fring.com/

vtok
http://www.vtokapp.com/

facetime
http://www.apple.com/ios/facetime/
http://www.apple.com/mac/facetime/

Telegram
https://telegram.org/
Hall
https://hall.com/

Nimbuzz
http://www.nimbuzz.com/en/

Linphone

http://www.linphone.org/

Telegram desktop
https://telegram.org/

whispersystems
https://whispersystems.org/

glide me
http://www.glide.me/

wire
https://www.wire.com/

redphone
https://play.google.com/store/apps/details?id=org.thoughtcrime.redphone

oovoo
http://www.oovoo.com/