Motorola Droid Turbo :: How To Send DTMF Codes

I have a new Turbo. I participate in a lot of conference calls using the same conference room code. To make it easier to dial in, I had it setup on my old phone (Razr Maxx HD) to send the room code after I connected the call. Worked great and I didn't have to memorize a long string and input it (while driving usually). Now, when I click ok to send the tones, they're sent so fast that it comes across as one tone and isn't recognized. Setting the tone length in the settings does no good - normal is still too short. I've tried putting commas (,) in between each number, but that takes sooooo long it defeats the purpose. What's going on or other way to send the tones? I've tried other dialers, but they all use the OS settings and don't do any better.