You can contact Francis by mobile phone (+44 7840 191336), email, facetime and skype, with the option of encrypting email messages and other files…
Please note that Francis has only limited, ad-hoc internet access whilst mobile. Also, whether mobile or static, he limits message notifications so as not to be distracted from work.
For real-time communication Francis recommends the telephone, facetime and skype. Video calls are only possible with a broadband network connection, and then preferably by arrangement. It’s good to talk.
You should also note that voicemail is for the most part inactive on Francis’ mobile phone. Email and SMS may be used in lieu of voicemail, but you should not rely on an instant response. If you must use text messages to contact Francis, please provide an email address for reply.
Whenever Francis is electronically incommunicado for longer than a day, there should be an email auto-responder in place to inform you of his whereabouts and current activities.