[header] How to activate call forwarding [title] Sign up. [step] Call forwarding isn't usually included as a standard feature in most phone service plans. Call your provider and ask to sign up for call forwarding if you'd like to use it. 
[substeps] There are two types of call forwarding: conditional and unconditional. Conditional call forwarding will only forward a call from the activated phone to the target phone if the activated phone is busy or nobody picks up after a certain number of rings.