Emergency Dialing for Virtual Office

Last Updated : Oct 15, 2019 |
Prolog information
Metadata
Keywords:
  • CS 1000 endpoint user experience
    • When a SIP user is logged in to a VO account: CS 1000 supports emergency dialing by allowing Virtual Office users to directly call Public Safety Answering Point (PSAP) for their geographic location. The home server determines the VO login and redirects the emergency call to CS 1000 host. The host CS 1000 uses the ESA location information to receive a call back and sends the location number to PSAP.
    • When a SIP user is logged out from a VO account: CS 1000 supports emergency dialing for making calls and receive call back by allowing Virtual Office users to temporarily register with the Call Server. The registration begins as the user tries to make a call from the logged out phone by going off hook, pressing the primary key, or using the handsfree or headset.
  • Communication Manager endpoint user experience
    Communication Manager does not support the Virtual Office feature. Services related to Virtual Office such as Emergency Dialing for Virtual Office do not apply.
  • Device Adapter endpoint user experience
    • When a SIP user is logged directly in to the set using normal registration or logged in to a VO account: Device Adapter does not have any specific configuration for providing emergency dialing using Virtual Office. The configuration at Session Manager and ELIN server ensures that the call information is available to PSAP, to identify the caller information, and receive call backs.
    • When a SIP user is logged out from a VO account or the server becomes unregistered: Device Adapter supports emergency dialing for making calls and receive call back by using VOLO attributes that is TN range for emergency calls from Logged out sets and SIP domain for emergency calls from Logged out sets.
      Avaya Breeze® platform cluster attribute VOLO is assigned automatically to the logged out set. The VOLO attribute cannot be used once the phone returns to its normal state or if it loses network or power during the logged out state.
      VOLO TN is used to handle emergency calls using CS 1000 components. VOLO TNs are used to register the logged out phone with the Avaya Breeze® platform components.
      The logged out phone can only make ESA calls such as 911, 112 and so on. The configured VOLO TNs are expected to be fully restricted, which means the device will not be registered with Session Manager and all the operations other than emergency calling will be rejected. So, that means Session Manager can make an emergency call from an unregistered phone by making a connection of Device Adapter and the device.
User procedure:
  • Phone is in logged out state.
  • The User goes off hook.
  • A VOLO TN is assigned immediately when the phone goes to logged out state
    Note:
    You can change the default value of allocated TNs and SIP domain assigned for making emergency call by navigating to Elements Avaya Breeze® Configuration Attributes from the System Manager web console.
  • Emergency number can be dialed from the phone.
  • Any other operation cannot be completed using this phone.
  • Incoming call from PSAP are not supported.
Important:
VOLO TN is assigned to a logged out phone only during the transition from normal to logged out state. If logged out phone does not get any free VOLO TN during that transition, the phone will remain in logged out state with no additional key or capability to make emergency calls. If a VOLO TN becomes free later, when the phone is already in logged out state, then VOLO TN will not be assigned dynamically and the phone will not be able to make emergency calls.
For more information, see Virtual Office in Appendix H: Call processing features and services.