Everything is negotiable.
Service, equipment, maintenance; it’s all negotiable. Largely everything in telecom should be under a contract.
Contracts should scale up and down based on quantities and spend. Contracts should never have an auto-renew clause, and early terminations should be negotiated to the minimum.
If you are having trouble with any of these steps engage a consultant to produce a report with best-in-market pricing and use that data to interface with the vendors.
Make sure the consultant is independent so their findings are an accurate representation of the market and not skewed by any relationships.
Contract review and the actions that follow can truly save your company big dollars.