HORISEN
Avaya
Mitto
cataleya Cataleya
Fuse2
nuwavemarketguide Nuwave
ringcentral RingCentral
marketguidesoprano Soprano
tatamarketguide Tata Communications
ulap ulap
Yeastar
8x8 8×8
AWS Communication Developer Services
Bandwidth
BICS
callroute Callroute
Commio
deltapathmarketguide Deltapath
Dstny
IntelePeer
Iot Communications
Kandy
MessageBird
Microsoft (Azure Communication Services)
onebill OneBill
plivomarketguide Plivo
radisys Radisys
Ribbon Communications
Sinch
syniversemg Syniverse
Toku
Twilio
Vonage
Webex