I have a IVR set to pickup our PSTN lines and tell the user to enter the extension OR to press 1 for a representative. If the person enters an extension it transfers within 1 second , but if they press 1 asterisk goes silent for 5-10 seconds before it starts ringing the phones in a Hunt group. Below is the pastebin with the Full log while I call in and press 1.
The system is waiting for further input to determine whether the complete extension is '1' or something else that starts with '1'.
Do you have other extensions in that context that start with the number 1? Check your dialplan.