The phrase "a time when phone" is not correct and is incomplete in written English.
It could be used in a context discussing a specific period related to phones, but it needs additional information to be clear.
Example: "I remember a time when phone calls were the primary way to communicate."
Alternatives: "an era when phones" or "a period when phone".
Considering that most people these days go through a cell phone in a time frame shorter than the human gestation period, it may be hard to believe that there was a time when phones were primarily an item you rented from the phone company.
The bill is also an important public safety protection, making cell phones less enticing to criminals at a time when cell phone theft is on the rise.
When I was a Guardian reporter in Belfast, it was as well to allow plenty of time when phoning him, for he had a fund of stories.
Arriving at a time when the phone company's stock price was plunging and the value of cable systems was sliding as well, Liberty drove a hard bargain.
It's a peculiar thing about being a radical — the years go by and lo and behold there comes a time when the phone calls don't come in any longer from one's more elevated social friends.
Business Chat has come at a time when the "phone" part of our smartphones is turning into just another "app" — and increasingly, a spammy and bothersome one thanks to spam calls.
There are, however, some arguments that speak against a decisive influence of recall bias: Most participants of the Interphone and Hardell studies were enrolled during 1997 2003 at a time when mobile phone use was not widely discussed as a potential risk factor for brain tumors.
Before landlines also pass into the dim memories of people born before the mobile phone age, allow me to remind you of a time when all phones were connected to a wall cable and could not be disconnected.
Only 3 percent of the population had a mobile phone in 2011, the last year for which data are available, a startlingly low number at a time when mobile phones are ubiquitous even in the poorest corners of the world.
