I would like an extension to monitor multiple other extension. I have an extension 238 and in the channel field for that extension, I type sip/2382 and it does a great job of monitoring that additional extension but if I do more than one it only accepts the first. I entered the additional channels as sip/2382|sip/2383|sip/2384. How can I make this work to monitor those three extensions or can I make it work?