属性

数据类型ID

必须?Mandatory

长度Min 0 / Max 3

Codes (27)

• AACircuit switching
• ABSITA
• ACARINC
• ADAT&T mailbox
• AEPeripheral device
• AFU.S. Defense Switched Network
• AGU.S. federal telecommunications system
• CACable address
• EIEDI transmission
• EMElectronic mail
• EXExtension
• FTFile transfer access method
• FXTelefax
• GMGEIS (General Electric Information Service) mailbox
• IEIBM information exchange
• IMInternal mail
• MAMail
• PBPostbox number
• PSPacket switching
• SWS.W.I.F.T.
• TETelephone
• TGTelegraph
• TLTelex
• TMTelemail
• TTTeletext
• TXTWX
• XFX.400