Require a VOIP expert to assist in a pretty quick matter.
A client of our has 3 companies. He would like to use VOIP to take and make calls from the three companies. All three companies will have different phone numbers. The other problem to note is that employees of company three will be both in the UK and abroad. Any call coming in will then either need to be transferred to the UK or abroad. When the persons abroad make calls they will be using VOIP and a UK geographic number because they will be calling into the UK.
1. Looking for a reputable provider in the UK for VOIP
2. That can handle this setup
You'll be asked to do the setup (or assist).