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I'm sure we have all made an OOB call where the team not getting the throw-in reacts negatively, in unison. In those situations I always hit the whistle & simply ask my partner if they had something different. No need for a conference... I just verbally ask him from across the court. If they don't have a different call, they say good call & we move on. If they do have a different call, bring it to me & allow me to change it.
Coaches may not yell across the court, but officials certainly may communicate with each other in that manner.
Double checking with a partner, when appropriate, isnt a bad thing. It communicates to all involved that you are open to being wrong & all about getting it right!