I have same problem with callcentric.com and Android phone. No matter how I press the key, it doesn't response.
Have you found a solution to it?
Please be more specific in your description. What do you mean, in more detail? Are you using a Callcentric number that you set up on your Android phone using an Android SIP phone app, or are you calling into the OBi on your Android phone's cellular service, to the OBi, which is configured to use a Callcentric number, or what? At what point in the process do touch tones not work?