How do you dial a phone number with an extension?
Android Phones
To add an extension when dialing, after entering the main number, press and hold the 0 button until a + is added to the number, and then enter the extension number. Use the same steps when entering a number with an extension into a new contact.
Can you dial extension directly?
Modern cellphones provide users with a way to dial an extension number directly. … After you do this, insert a comma after the primary number by holding down the * key until the comma appears. Then, input the extension number you want to reach.
