Not really. My phone service (including the PBX features) costs me around $6-$8 CAD a month (I can`t give you an exact amount since I fill my account with $75, which get used over the course of 6-10 months). That includes the DID, multiple lines, the IVR to handle my two extensions, etc...I was hoping to minimise my monthly outgoings by just paying for the SIP trunk and purchasing my own PBX as I am an unpaid carer. Renting a cloud PBX does add a little extra to the monthly cost.