Create a first-level. Assign this IVR a telephone number and a meaningful name (e.g. First Level Customer Hotline). The Main Greeting should say something like: For our London branch, press 1. For our Birmingham branch, press 2.
Create a second IVR for the London Branch with an appropriate name and Main Greeting (For Opening Hours, press 1. To speak to a customer service representative, press 2.). Link key press 1 to a recorded Greeting listing the London Branch opening hours. Link key press 2 to an appropriate destination (for example a group with a Call Queue)
Create a third IVR for the Birmingham Branch as per the London Branch
Link the first-level IVR (our First Level Customer Hotline) to our London and Birmingham IVRs by selecting each IVR as a destination for Key Press 1 and 2.