Hot Desking Overview

Hot desking allows multiple users to share a phone. Users can log in to the hot-desking phone,and place calls or answer calls by their own extension numbers. This topic describes the features and benefits, use cases, limitations, and supported phone models.

Features and benefits

  • For the extension users with flexible schedules, or work in multiple locations, they can use a hot-desking phone to make secure, high-quality calls by their own extensions.
  • For companies, they can share phones among employees to reduce the investment in facilities and phone hardware.

Use cases

  • Call center

    For agents who work on a flexible schedule, they can share a hot-desking phone at different time periods, make and receive calls on their own extensions.

  • Shared office

    For employees who work flexibly anywhere, such as the sales, they can use the hot-desking phone in the meeting room and make calls to their customers by their own extensions, without physically migrating their own phones or re-registering their own extensions.

  • Headquarters and branch

    For employees who work between the two places, they can log in to the hot-desking phone with their extensions to make and receive calls, instead of allocating private phones in both places.

Hot desking code

The extension user can dial the hot desking code to log in to or log out of a hot-desking phone as a guest.

You can view or change the hot desking code on PBX web interface: Settings > PBX > General > Feature Code.

The default hot desking code:

  • Guest In: *93
  • Guest Out: *093


  • Only the phone with hot desking enabled can act as a shared phone.
  • The extension user can only use the extension with hot desking enabled to log in to the hot-desking phone as a guest.
  • A hot-desking phone without an extension logged only allows the users to dial the emergency number.

Supported phone models

Hot desking is applicable on the following phones:

Vendor Model
  • SIP-T19P_E2
  • SIP-T21P_E2, SIP-T23P, SIP-T23G, SIP-T27G, SIP-T29G
  • SIP-T40P, SIP-T40G, SIP-T41S, SIP-T41P, SIP-T41U, SIP-T42S, SIP-T42G, SIP-T42U, SIP-T43U, SIP-T46S, SIP-T46G, SIP-T46U, SIP-T48S, SIP-T48G, SIP-T48U
  • SIP-T52S, SIP-T54S, SIP-T53, SIP-T53W, SIP-T54W, SIP-T57W, SIP-T56A, SIP-T58A
  • X1S, X1SG
  • X3SG, X3U
  • X4SG, X4U
  • X5U, X5S
  • X6, X6U
  • X7, X7C, X7A
  • X210, X210i