Nortel Meridian 1 Option 11c Telephone System Cabinet with 6 Cards NTAK11BD.Nortel Cabinet Model Number: NTAK11BDCabinet Includes:AC/DC Power SupplyPart Number: NTDK78AA 102x Digital Input Phone Trunk ExpansionPart Number: NTRB21AA 122x Digital Input Phone Trunk ExpansionPart Number: NTRB21AA 102x 16-Port Message Waiting Line CardPart Number: NT8D09BA 05XCMC Class Modem CardPart Number: NT5D60AA 028-Port Universal Trunk CardPart Number: NT8D14BB 13Digital Line CardPart Number: NT8D02GA 06Mail Processor Voicemail CardPart Number: NT6R16AA 08