Capturi can integrate with Zendesk and import your conversations from Zendesk Talk.
It just requires access to Zendesk's API. In order to access Zendesk's API, you need to create an API token and send the following information to your contact at Capturi.
Email address of the person who created the API-token
You can read here how to create an API-token.
Once the integration is set up, Capturi can fetch conversations from Zendesk along with the following metadata:
Customer's phone number