Jon Hamm is Jeb Masters in Web Therapy(2014)

http://aboutactorjonhamm.blogspot.fr/

Season 4 ep 3

https://www.youtube.com/watch?v=-Cm86w8FvK0

Old friends aside, Jon Hamm may be one of Kudrow’s funniest Web Therapy guest-actors. This season, Hamm plays Jeb, a phone-sex operator for the elderly. “Call His business is called Absolute Last ,” says Kudrow, practically hiccuping with laughter. In their first episode together, Hamm’s character talks to a client in the middle of therapy. “He has that Mercedes voice,” says Kudrow. “You know, ‘Hey, what are you wearing? Pink housecoat? Oh, yeah. Did you get it wet? Was it an accident?’ I’ve never broken that much, ever. I started crying I was laughing so hard.”

http://www.vulture.com/2014/10/lisa-kudrow-returns-with-the-comeback-again.html

Your Showtime series, Web Therapy, is still going on as well, right?
- Oh yeah! I can't believe who we go to do it. Jon Hamm, he made me laugh out loud. Gwyneth Paltrow — my god, she's a riot. Allison Janney was fantastic. It's all improvised, so they show up and see where it goes.
http://www.rollingstone.com/tv/features/lisa-kudrow-the-comeback-2014

and in :

Jeb Masters in : Jeb Therapy, Dropping candy bars, Absolute last call, Smile Through  the pain, Trust exercise