System Access / Intercom Buttons FeatureUsers access the system by pressing buttons on their telephones. These buttons are called either System Access (SA) or Intercom (ICOM) buttons, depending on the system operating mode. How these buttons operate also depends on the operating mode. Business IP Office PBX Telephone Systems At least one SA or ICOM button must be assigned to each extension in the system. SA or ICOM buttons can be assigned or removed only through centralized telephone programming. On a multiline telephone, SA or ICOM buttons can be assigned only on buttons 1 through 10. Any SA button can be the principal extension for up to 16 Shared SA buttons on other telephones. Any multiline telephone can have a combination of up to 28 SA or SSA buttons, at least one of which must be an SA button. No SA buttons may be assigned beyond line button 10, although SSA buttons may be assigned. The maximum number of system users who can be on a call on an SSA button (including the principal extension) is three. When a call is received at the principal extension, it rings on the principal extension's SA button, as well as on all corresponding SSA buttons. SSA buttons cannot be assigned to a 4400, 4400D, or single-line telephone, or to a DLC or QCC. A 4400 telephone, 4400D telephone, DLC, or QCC cannot be the principal extension for a Shared SA button. A single-line telephone cannot be the principal extension for a Shared SA button unless the telephone is connected to an MFM. When two or more users answer the same call on a Shared SA button, the red and green LEDs next to the button go on, but only one person can talk to the caller. Privacy should be used to eliminate competition for the same calls. Calls received on DID trunks ring on an SA button and on all SSA buttons for the receiving button. For assistance with this feature call to speak with one of our technicians 800-429-0077 System Access / Intercom Buttons Feature |