This type of feature key is used with IP500 V2 control units and is a mandatory item. The control unit must be fitted with one of these feature keys even if no licenses are being used.
- Software: IP Office Version
- Format: Mu-Law
- This type of feature key is also a memory card used for other system functions and to provide embedded voicemail if required.
- By default, the card can be used for 2 ports of embedded voicemail. Additional ports up to a maximum of 6 can be enabled by the addition of licenses.
- The voicemail mailbox message and prompt capacity is limited to 15 hours regardless of the card capacity.
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