1. Ahoy

I found this in 2 sources so now I know something new!

According to 'ask.com', Bell preferred to say 'Ahoy'. It was his friend, Thomas Edison, who felt that this new invention needed a new word and so came up with 'Hello' as a gift for Bell.

And from Wikipedia a bit more history: The use of hello as a telephone greeting has been credited to Thomas Edison; according to one source, he expressed his surprise with a misheard Hullo.[6] Alexander Graham Bell initially used Ahoy (as used on ships) as a telephone greeting.[7] However, in 1877, Edison wrote to T.B.A. David, the president of the Central District and Printing Telegraph Company of Pittsburgh:

Friend David, I do not think we shall need a call bell as Hello! can be heard 10 to 20 feet away.

What you think? Edison - P.S. first cost of sender & receiver to manufacture is only $7.00.

By 1889, central telephone exchange operators were known as 'hello-girls' due to the association between the greeting and the telephone.[8]

Redz and Annette

Rog, you've got the first and last ones correct.

Ok Sue, I give up on 10b but here's my attempt at the rest of them.

10b - ????
10c - 873-5468 = ts eliot
10d - 354-7326 = el greco
10e - 739-7333 = rex reed
10f - 623-9378 = mae west
10g - 434-2646 = idi amin

Good job, Chris! You're going to smack your forehead over that last one - she was the housewife's go-to lady for advice.

10b. 435-6473 Heloise. Thanks for the hint.

Good one, Dawn!

I'll try....

Pay phones
Phone booths
Area codes
Princess
Hold
Touch tone
Picture

Nice try, Koala! You moved touch-tone into the correct position.

Here's the answer:

pay phones 1889
hold button 1933
area codes 1947
outdoor phone booths 1953
princess phones 1959
Touch tone 1963
Picturephone 1964 NY World's Fair