Telephone system

Question

1. What manufacturer telephone system are you using?
2. How many extensions are there on your telephone system?
3. Who maintains your telephone system?
4. When does your telephone system maintenance contract expire?
5. Are you using Lync or Skype for Business?

Response

1. Manufacturer telephone system used is Avaya.
2. There are 4,919 extensions (capacity) on the system.
3. Freedom Communications Ltd. and Sabio Ltd. maintain the telephone system.
4. Limited evaluation/trial of Skype for Business (having moved from Lync) as an available option of the new UK NHS national email service.