Whereas silence feels like the best solution now, it will only be okay again after talking out....
I see no problem leaving the phone with the wife, it speaks of honesty and nothing to hide.....I have done the same for 3 months with no problem.
Hope you didn't land and behaved like you had been around...was there catching up...like talking about her and what went on while you were away. If you communicating while you were away and there were no unresolved issues, the anger was not warranted.
One more thing: When either the man or woman goes away for two months, each partner gets to do things their way..some freedom that makes you decide things how you like them without thinking about anyone else. When you get back together, expect some tension...like you are strangers....Even the kids who had taken to sleeping with their mum when you were away hate it when you are back because they move back to their beds...
Talk out....Talk out...that is the only way....
Keep in mind, its not always about what you do or don't do...sometimes, it is about the other person having emotional issues.
Be happy....focus on the unfinished projects....catch up the 2 months gap with friends..and wait it out for her to cool down and then talk.