Last year our church changed its church phone service. With about 118,000 Google search results, 1-267-507-0240 is obviously a common conference call number. Dial the number, enter the pin you received and you are connected. Simple.
Unfortunately, 267 is a Pennsylvania area code so the long distance charges could add up. For a cell phone without a long distance plan the rates could be about $0.50 per minute resulting in about $45 per service! It is recommended to obtain a long distance plan.
Two internet based options include Skype and Google Voice.
Google Voice is free for all calls within Canada and the US. It might need to be activated: http://www.google.com/intl/en/chat/voice/ Unfortunately, Google Voice is currently limited in Canada. Smartphones can still use the Google Voice service in Canada by using third-party apps such as Mo+ PHONE for iPhone or Android. Although it appears Google is terminating these third-party apps in a few months.