# Webex Calling shared lines

Canonical: https://warmtransfer.net/knowledge/webex-calling-shared-line-artefacts

Last verified: 2026-09-15

A shared line is 1 phone number appearing on up to 35 devices, provisioned by an administrator[^8]. Paired statuses are published by the shared line so each party can see when the line is active, on hold, or alerting[^9].

## Shared line behavior

An alerting shared line is shown even when the local phone is set to do not disturb[^9]. When a call is in progress on a shared line, a coworker can join it using a barge softkey if the administrator-configured barge feature enables the capability[^2]. Joining via the barge softkey converts the call to a 3-way conference[^2].

Private hold places a shared line call into a state that the other party can see but cannot resume[^5]. The shared line documentation mentions recording once, as a control to start it, and states nothing about whose recording settings apply when 2 users share a line or what happens to a recording when someone barges in[^6]. Additionally, the documentation does not mention call detail records, call history, or logs[^7]. The documentation also uses none of the words supervisor, monitor, coach, or whisper[^4].

In the field, the shared line documentation scopes itself to the Cisco Desk Phone 9800 series and the Cisco Video Phone 8875 registered to Cisco BroadWorks or Webex Calling, and never mentions the Webex App or a desktop client[^3].

## See also

- See also [Webex Calling supported devices and MPP firmware](https://warmtransfer.net/knowledge/webex-calling-device-support).
- See also [Webex Calling calling features and feature parity vs UCM](https://warmtransfer.net/knowledge/webex-calling-features).

## Applicability

Applies to: Cisco Webex Calling. Sources checked 2026-09-05.

## What remains uncertain

Whose recording settings apply when 2 users share a line is not covered by the sources below. Whether the shared line barge relates to the contact centre supervisor barge is not covered by the sources below. Whether a shared line exists outside the 2 phone families the article names is not covered by the sources below.

## Sources

[^1]: A device owner identifier field names the device owner when it differs from the line's actual user. Source: [Reports for Your Cloud Collaboration Portfolio](https://help.webex.com/en-us/article/nmug598/Reports-for-Your-Cloud-Collaboration-Portfolio), Cloud collaboration reports, device owner identifier field. Checked 2026-09-15.
[^2]: A coworker can join a call in progress on a shared line with a barge softkey, which converts the call to a three-way conference, and the capability is gated by an administrator-configured barge feature. Source: [Work with a shared line on your phone](https://help.webex.com/en-us/article/njxdvzv/Work-with-a-shared-line-on-your-phone), Work with a shared line on your phone, barge. Checked 2026-09-05.
[^3]: The shared line article scopes itself to the Cisco Desk Phone 9800 series and the Cisco Video Phone 8875 registered to Cisco BroadWorks or Webex Calling, and never mentions the Webex App or a desktop client (field report). Source: [Work with a shared line on your phone](https://help.webex.com/en-us/article/njxdvzv/Work-with-a-shared-line-on-your-phone), Work with a shared line on your phone, scope. Checked 2026-09-05.
[^4]: The shared line article uses none of the words supervisor, monitor, coach or whisper. Source: [Work with a shared line on your phone](https://help.webex.com/en-us/article/njxdvzv/Work-with-a-shared-line-on-your-phone), Work with a shared line on your phone, counted against the rendered article. Checked 2026-09-05.
[^5]: Private hold puts a shared line call into a state the other party can see and cannot resume. Source: [Work with a shared line on your phone](https://help.webex.com/en-us/article/njxdvzv/Work-with-a-shared-line-on-your-phone), Work with a shared line on your phone, private hold. Checked 2026-09-05.
[^6]: The shared line article mentions recording once, as a control to start it, and says nothing about whose recording settings apply when 2 users share a line or what happens to a recording when someone barges in. Source: [Work with a shared line on your phone](https://help.webex.com/en-us/article/njxdvzv/Work-with-a-shared-line-on-your-phone), Work with a shared line on your phone, counted against the rendered article. Checked 2026-09-05.
[^7]: The shared line article does not mention call detail records, call history or logs. Source: [Work with a shared line on your phone](https://help.webex.com/en-us/article/njxdvzv/Work-with-a-shared-line-on-your-phone), Work with a shared line on your phone, counted against the rendered article. Checked 2026-09-05.
[^8]: A shared line is one phone number appearing on up to 35 devices, provisioned by an administrator. Source: [Work with a shared line on your phone](https://help.webex.com/en-us/article/njxdvzv/Work-with-a-shared-line-on-your-phone), Work with a shared line on your phone. Checked 2026-09-05.
[^9]: A shared line publishes paired statuses so each party can see when the line is active, on hold or alerting, and an alerting shared line is shown even when the local phone is set to do not disturb. Source: [Work with a shared line on your phone](https://help.webex.com/en-us/article/njxdvzv/Work-with-a-shared-line-on-your-phone), Work with a shared line on your phone, status list. Checked 2026-09-05.