I am having a challenge dialing in to teleconference bridges where an access code is required to enter the specific teleconference. I am able to access the bridge by dialing the number, however, when I dial the 6 digit acces code, my phone is actually dialling double digit entries. Example would be: access code 407468 and the phone dials 440077446688. I have made many attempts thinking that pressing the keypad is too long thus making double digit entries but that's not the case. Anyone got suggestions or solutions for this?