Ottspott Business Phone app for iPhone and iPad

Ottspott is a cloud based phone system on for Slack and G Suite teams.

You can either port your existing numbers or get new numbers from Ottspott:
(choice in approx. 9000 cities/40 countries).
For each phone number, Ottspott will create a Slack channel inside your team, where you can manage your phone activity. 
- Manage inbound and outbound calls
- Forward calls to 1 or multiple phone numbers
- Make browser based audio-conference calls (both through url and calls to cell phones/ landlines)
- Manage waiting queues for incoming calls for better customer experience
- Get voice mails transcribed in multiple languages
- Send and receive SMS (available only for US & Canada users)
- Integrate and automate call logs with your preferred business apps: Hubspot, Zendesk, Salesforce, Pipedrive, Intercom, Gorgias, Zapier