IP500/IP500 V2 Installation Page 349
15-601042 Issue 25i (03 January 2013)IP Office 8.0
System Components: Phone Add-Ons
9.12.8 SMB24
The maximum number of button module buttons supported, of any type, on a single system is 1024 .
This button module is supported with 9630G, 9640, 9640g, 9650 and 9650C telephones. Up to 3 SMB24 modules can be
attached to any one phone. For additional limitations see Phone Add-Ons .
· The Class requirement of PoE powered phones may be increased if the phone is used with additional equipment
such as a button module.
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