FOI003458 FOI Customer Contact Centre

I would like to request the following information under the Freedom of Information Act 2000.

Contact Centre / Telephony

What contact centre or telephony system does the council currently use for resident-facing calls (e.g. the platform used by your customer contact centre)?
Who is the provider/supplier of this system?
How many agent seats/licences does the contact centre currently have?
When does the current contract for this system end?
Does the contract include an option to extend? If so, for how long, and until what date?

Please number your responses to correspond with the questions above.