One hour / 60 minute time limit?

On a call this afternoon dialing out to the 212 area code. My Siemen's phone has a call timer and at exactly one hour / 60 minutes, I get a fast busy from my call and have to hang up and dial back in.

After I hang up, both line lights come on and go out before I can get a dial tone.

Fluke or is there some sort of time limit on calls that I'm not aware of?

There no hard limitation on call duration (my wife has had calls over 3 hours). I'd file a support ticket to see what happened.

OK, good to know...I dialed back in went past an hour on the same number. I'll file it away as a fluke but see if there is a pattern in the future. Thanks for the quick reply!