Can I have it FREE ?
Your monthly cost will be made up of a number of factors.
Phone system rental (per channel) - 1 Channel is free (see below).
Any optional free call bundles
Any phone numbers (DID's) - You get 1 free DID with an account.
Call/SMS usage charges outside your bundle.
There's no cost for receiving calls. There's no cost for adding extensions or making calls between extensions.
Therefore the following account is FREE:
Sign up for a free trial