1 and 0
45
1 and zero
In the U.S. it's 1 and 0.
0 and 1 have no letters corresponded with them
An autodialler is an electronic device which can automatically dial telephone numbers to communicate between two points in a network.
In general, laptop computers cannot dial telephone numbers.
On a mobile phone (cell phone), just dial +34 (including the plus symbol) and then the 9-digit Spanish telephone number. On a landline, a fax machine, or a cell phone that does not allow you to enter the plus symbol in a telephone number, replace the plus symbol with the US/North American international access prefix, 011.
The extra phone numbers might have been the incoming calls.
In the U.S. it's 1 and 0.
You can dial 411 in Canada for a free telephone directory. You can also contact 18005422411. Lastly, you can dial 18008526532 to receive free information on local businesses such as their phone numbers and their addresses.
There are many telephone numbers a person can dial to get an emergency electrician. In an extreme emergency situation even dialing the local authorities is a great place to call.