Add paste feature to dialing app for conference bridge numbers

As a heavy user of Webex and other conferencing services I frequently have to write down the conference bridge code and retype it into the iPhone dialing app once the call is established. If I could copy and paste the bridge code from a calendar it would make this process much easier. When dialing a call you can add a bridge code by using a pause (comma). xxx-xxx-xxx,,,xxxxxxx. Once the call is establish it would be nice to hit paste and have it send the numbers. This would be a nice enhancement to the app. It is surprising that for a phone, the phone app has the least amount of enhancements.