Increase amount of rings before voicemail?

I have been constantly finding myself running across the house trying to get the phone before it goes to voicemail. Is there a way to increase how long the phone rings before transferring to voicemail?

Thank you.  I really wish I could bump it up to 45 or 60 seconds though

I don't think so. I mean, until I got my answering machine, my house phone would ring until someone picked up. I'm not saying that should be the default, I just wish it was an option.

I tried selecting "cancel all", but it didn't do anything. It rings for 20 seconds and goes to voice mail.

Edit: So I set everything to deactivated but it still only rings for 20-30 seconds. when I click More > Check status it switches back to activated.

Edit2: I contacted At&t support to see if it was an issue with the network not letting me deactivate it. As far as I can tell it was. However, they said the max time they can let it ring is 30 seconds. this is bullshit.

edit3: apparently the customer support agent doesn't know jerk. Deactivating the voicemail through at&t worked. It now continues to ring.