Integrate a VoIP system with a CRM system

Job ID: 31507626

Budget: £20 – £250 GBP

Please note that any bid that does not include a full acknowledgment of the task will be ignored. I am tired of fake bids from coders who haven't read the requirements.
The basic is to integrate my exiting VoIP system with a CRM system. This might be done in the following ways.
1. Integrate with 'Clickup' CRM and project management suite.
2. Create our own contact database.
3. Suggest an alternative that is cost effective.
The VoIP system is 'VoIPStudio'

I have looked at various 'CRM systems' , most of them prove to be very expensive in actual ongoing costs.
WE will need quite a lot of further work to create our finished system.
Related categories: Project Management Software Architecture CRM VoIP MySQL