On a Cisco IP Phone 7800 Series Multiplatform phone, a call arriving while another call is active announces itself with a single beep and a line button flashing red, and is answered by pressing that line button.

Checked 2026-09-21

When you're on an active call, you know that a call is waiting when you hear a single beep and the line button flashes red
Vendor
Cisco
Product
Cisco IP Phone 7800 Series with Multiplatform Firmware
Subsystem
call-waiting
Deployment
multi-tenant
Region
not restricted
Release range
MPP firmware 11.3(1) through 12.0(4)
Checked
2026-09-21

Sources

Cite this note

APA

WarmTransfer. (2026, September 21). Using a Cisco desk phone on Webex Calling: source note webex-calling-desk-phone-user-guide-call-waiting-alert. WarmTransfer. https://warmtransfer.net/knowledge/claims/webex-calling-desk-phone-user-guide-call-waiting-alert

BibTeX

@misc{warmtransfer-claim-webex-calling-desk-phone-user-guide-call-waiting-alert,
  title  = {Using a Cisco desk phone on Webex Calling: source note webex-calling-desk-phone-user-guide-call-waiting-alert},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/webex-calling-desk-phone-user-guide-call-waiting-alert},
  note   = {Source note webex-calling-desk-phone-user-guide-call-waiting-alert, checked 2026-09-21}
}

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