"briefing call" is a correct and usable expression in written English.
You can use it when referring to an informal meeting or conversation, where the purpose is to provide information or updates. For example: "We will have a briefing call at 4 pm to discuss the new project plans."
The Environmental Protection Agency is aiming to cut methane emissions by up to 45% from 2012 levels by 2025, White House officials told campaigners during a briefing call.
The "devil is in the detail" admitted Rupert Bondy, BP's group general counsel, in a briefing call with City analysts after the outline deal signed before the weekend.
"For a long time, some members have claimed that that prohibits them from conducting any research on the causes of gun violence," a senior administration official said during a briefing call with reporters.
5.46pm BST The White House has announced a "background briefing call" with the media this afternoon with "senior administration officials" on "the Assad regime's use of chemical weapons in Syria".
"We fully expect we will continue to have strong differences, particularly on democracy and human rights... [but] engagement is a better tool than isolation and nowhere is that more clear than Cuba," added a senior US administration official in a White House briefing call for reporters.
These were the major announcements from today's briefing call between Facebook's election integrity team and reporters.
This is especially evident in a daily political briefing called The Note".
Later that morning, his office sent out a briefing calling him "a reluctant remainer".
White House press secretary Josh Earnest laid into the Senate at his daily briefing, calling the chamber's inaction on the bill passed by the House "irresponsible".
The White House's latest innovation is a variation of the background briefing called the "deep-background briefing," which it holds for groups of reporters, sometimes several dozen at a time.
General Flynn's briefing, called " State of the Insurgency: Trends, Intentions and Objectives," was presented on December 23 , 2009
