"opening up communications" is correct and usable in written English.
You can use it when you want to express the idea of establishing a means of communication or of allowing communication to occur. For example, "We have been working to open up communications between our two departments."
They've got to open up communications — and not for press purposes.
Talabani then asked that Iran open up communications with the multinational forces in Iraq, and coöperate with the Iraqi and U.S. governments in their security plan for Baghdad.
First and foremost, however, the princes of the Saxon and Thuringian marches sought to attract settlers for the lands that they had conquered and the towns that they had founded to open up communications and trade routes.
A recently retired E.P.A. senior official told me, "Lots of times, political appointees who come in don't really have any idea of the federal-government rules, but what's different in this case was that usually there's an attitude of, Let's open up communications so you can help us get up to speed.
4) Open up communications If you haven't regularly included your spouse or partner in your financial decisions, do it now.
With many facing the worst economic crisis in a generation, there is no better time to open up communications with your loved one than now.
Trump has responded by indicating that if Cuba does not make concessions along these lines, offering Cuban Americans and the whole American people "a better deal," he will reverse the Obama administration's measures to open up communications.
The campaign aimed at forcing the straits and opening up direct communications with Russia.
By opening up the communications stack via the API in a holistic way and introducing video and P2P realtime data transport, Apple will open a new world of communications apps that will further blur the lines between computers and communications devices.
