TEC Exa-Blaster Modem 2

Help EMBER-2 increase her processing power by infecting smartphones. Find smartphone numbers by pulling them from the contacts lists of existing smartphones.

"Using your modem, connect to each dataphone so that EMBER-2 will have a list of valid phone numbers. Each dataphone contains a list of the owner's contacts (file 200). The phone number of one of these dataphones is in your host (file 300), while the rest are in the contact list of another dataphone. Note that each dataphone (aside from the first) will appear in exactly one other dataphone's contact list, in such a way that you can find them all without getting stuck in a loop."
 * This resembles a combination of TEC Exa-Blaster Modem 1 and King's Ransom Online. Varying techniques from those missions will help you complete this one.