HotTelecom
https://hottelecom.biz/VoIP business systems for SME business
Hottelecom provides VoIP services to small, medium and enterprise businesses including:
- landline phone numbers
- mobile phone numbers
- Virtual PBX
- toll-free numbers
- voicemail greetings
and many additional services.
Angel list: https://angel.co/company/hottelecom
Member count: 11-50