The Office reunion! Jenna Fischer, 50, is seen with Brian Baumgartner, 51, and Kate Flannery, 59, for new commercial

Jenna Fischer — who played Pam Beesly on The Office — was excited about reuniting with her former co-stars for an AT&T commercial as the show’s 11th wrap anniversary approaches.

The actress chatted furiously PEOPLEtelling the source that getting back together felt “fun” and just like old times.

“It was so much fun and completely seamless,” she said, “we immediately clicked with our chemistry. It was so exciting. It was over too quickly. I wish it had lasted longer.

The mother of two shared, “I think [Ed Helm’s’ character] Andy had a line where he said, “If only you knew you were in the good old days when you were in them.” I’m paraphrasing, but it’s that idea.’

She continued, “And listen, we knew we had something great when we were filming. But this was an opportunity to go back and relive that magic for a moment, and it’s such a gift to be able to do that.”

The ad was about AT&T’s Next Level Network program, which aims to help small businesses climb the ropes; Brian Baumgartner is seen here

Creed Bratton played a self-proclaimed character on the show and released music after the wrap

The actress said getting back together with the cast felt “fun” and just like old times

The Mean Girls musical star told the outlet, “It was like getting to play with your winning football team again. It was so great.’

Rainn Wilson, Craig Robinson, Creed Bratton, Kate Flannery and Brian Baumgartner were among the cast members returning to the screen.

The ad was about AT&T’s Next Level Network program, which aims to help small businesses climb the ropes.

In the commercial, the company Dream with Rainn shows off their creation of a new sleep therapy device: the Sleep with Rain pillow with a speaker inside.

Fischer — whose real name is Regina Marie Kirk — went wild about being on camera with Robinson, which didn’t happen often on the show.

“When I was on The Office, Pam and Daryl’s characters, we were often the voice of reason. And we didn’t work together much for storylines because they always had us working with an unreasonable person so that we could be a reasonable person,” she said.

“Every now and then Pam and Daryl were able to work together, and it was so great,” the star added.

Kate Flannery poses for the ad while sitting in an office chair

Fischer went wild about sharing the camera again with Craig Robinson (pictured)

Jenna Fischer – who played Pam Beesly on The Office – was excited about reuniting with her former co-stars for an AT&T commercial as the show’s 11th wrap anniversary approaches

The pair worked well together as they never stopped improvising during the shoot. We were milking it,” she admitted.

After having a nostalgic time with her old co-stars, Jenna said she would do it all over again.

“I want to do another AT&T shoot and I want more people to come by. That would be my dream,” she told the outlet.

While waiting for another reunion, she said the experience was “really so much fun,” noting that the cast felt free to make their own creative decisions during the ad’s shooting.

“We got our comedic chemistry without having to worry about, ‘Are we ruining the story and lore of our characters?’ So the AT&T commercial gave us the opportunity to work together again in a really nice way,” the star shared.

These days, Jenna runs a comedy podcast with her former co-star called Angela Kinsley Office ladies.

In it, they revisit the series and analyze specific events from the nine seasons of the hit series.

Rainn Wilson, Craig Robinson, Creed Bratton, Kate Flannery and Brian Baumgartner were among the cast members returning to the screen

The Mean Girl musical star told the outlet, “It was like playing with your winning football team again… It was so amazing.”

Although not all of the original cast was available for the commercial, Jenna says they are all still close and keep in touch.

‘We have a text thread. It’s called Office Peeps, and we all text on it, send pictures and updates and all the things you have in a text string,” she revealed.

‘We only have our text thread. But then we all meet each other and stand aside together. But we have our text thread, things are going well,” Fischer finished.

Missing from the ad were Steve Carell, John Krasinski, Mindy Kaling, BJ Novak and Ellie Kempe.