The phrase "a speakerphone in a" is correct and usable in written English.
It can be used when referring to the presence or installation of a speakerphone within a specific context, such as a room or device.
Example: "We need to install a speakerphone in a conference room to facilitate remote meetings."
Alternatives: "a speakerphone located in a" or "a speakerphone situated in a".
He told the families, who were silent and holding hands as they listened to him over a speakerphone in a conference room at the Kennedy Space Center, that there were millions of Americans praying for them and that he wished he could be there to hug and cry with and comfort them, a White House official said.
In Haiti, a primary care physician, oncology nurse and several others gather around a speakerphone in a simple stucco house near the hospital.
Campbell drives a 2007 Toyota RAV 4 SUV equipped with hands-free cellphone usage that integrates with the vehicle's audio system to work much like a speakerphone in a traditional office.
Avoid using a speakerphone in an office environment where there is open space such as cubicles.
Even as a disembodied voice coming through a speakerphone in the Knicks' offices at Purchase College, Marcus Camby's pain, frustration, and resignation were evident.
With a Phoenix police officer present, the Watsons called Mr. Gotbaum from a speakerphone in their car, according to the police report, and told him what had happened.
For the meeting, Allen was in Alaska with Bottini and James Goeke, another local Assistant U.S. Attorney, and an F.B.I. agent; Marsh and Edward Sullivan (also no relation), a junior member of the team, were on a speakerphone in Washington.
But possibly nothing was more effective in consolidating the team's spirit than their call to Seve Ballesteros over a speakerphone in the hotel on the eve of the tournament.
One of the movie's most touching scenes shows the team's reaction when Corradini tells them, over a speakerphone in the kitchen, the devastating news that the I.O.C. had said no to women competing in ski jump at the Vancouver Olympics.
It all sounded very good as I listened to it, in those pre-Net days, over a speakerphone in Santa Monica.
I listened to it over a speakerphone in Tom Hayden's office in Santa Monica and thought it was very good (as I thought in later years listening to an audio cassette of the speech in my car).
