Microsoft Dynamics 365
Zendesk
HubSpot CRM
Zoho CRM
Pipedrive
Microsoft 365
Google Contacts
Telnyx
Skyetel
QuestBlue
Bandwidth
Twilio
BulkVS
VoIP Innovations
thinQ
DIDWW
infobip
Jitsi as a Service (by 8x8)
Netsapiens