Hello, I have a single Eircom Business line but I am out of office a lot, What is the best way to divert calls to my Meteor mobile number at the lowest cost. Eircom have an add-on at a cost of €5 p.m for 200 mins. but this is only available for residental customers only. I did see a phone previously which connected to the landline and also had a SIM and this routed calls to the mobile, any experience of this?