In this Blind Vet Tech Quick Guides and Tutorials podcast, we demonstrate how to add a pause (aka comma) or wait (aka semicolon) to a phone number in Contacts. Any smart phone may preform a similar trick where a comma or semicolon means pause or wait while dialing a number from your contacts list.
Here is how to insert a pause or wait in iOS with Voice Over if you are using the onscreen keyboard.

* Open a contact where you are dialing a number requiring an access code or numerical prompt system
* Press the Edit button in the upper right corner of the screen
* Double tap on the field where you insert the phone number
* After typing in the phone number, determine if you need to insert a pause (aka comma) or a wait (semicolon)
* Press the shift button, visually it contains a few symbols like plus and number sign,
* Find the pause (aka comma) where the 4 button previously was located
* Find the wait (aka semicolon) where the 6 button previously was located