Snom190 - Remote Phone

Hey there, I have a phone connected from a remote office to an asterisk server. I can dial extensions and everything is fine, but when I go to check a mailbox for voice mail, the chick asks for the mailbox number and I type it in, but to no avail. It is like I cannot type in numbers during the call, so I can not enter in a mailbox number, nor a password to check it!

Any thoughts? Thanks!!!

mismatch on dtmf settings or you are using inband with a non-linear codec. (and there is no reason you would want to use inband).