Manufactured by Nortel, the M7310 phones offer versatility and easy functions for every day office users. The twelve buttons located on the top of the phone have a few different uses. One way to use them is to program them for in-office speeddial, so one touch dialing to reach a colleague. Another way to make your M7310 phone work for you is to use those buttons for out-of-office speeddial. If there is a vendor or client you call frequently, just press that button and you are on your way.
The M7310 phones can be programmed for 1 incoming phone line up to 10. The colored button caps pop on and off, so you are able to alter your phone's appearance for your company's specific need. I would say most commonly businesses use either 4 or 6 lines when operating the M7310 phones.