We need a word

Paging Rich Hall: In this modern era, when people communicate by blog, IM, twitter, e-mail, phone, and occasionally in person, we sometimes respond to things that our interlocutor said in a different medium—sometimes when it’s not obvious we were even a party to the referenced statement, which can be momentarily disorienting for the person who made that statement.

We need a word for this practice of abruptly picking up a conversation in a different medium. Electrolocute? Ricosay? Resumversation?