Call forwarding - am I being dumb?

[Moleshome]

I'm used having options such as 'Not answered', 'No service' etc. Have I missed something or does the iPhone really not do anything other than an unconditional divert?

 

[ibanana]

I'm used having options such as 'Not answered', 'No service' etc. Have I missed something or does the iPhone really not do anything other than an unconditional divert?

it does not, only one option to divert all call. that's all.