The maximum combined number of unique primary, shared and virtual lines on a phone with Key Expansion Modules is 16, counted across the phone and the KEM together.

Checked 2026-09-30

The maximum combined capacity for unique primary, shared, and virtual lines on phones with KEMs is 16 lines across both the phone and KEM.
Vendor
Cisco
Product
Webex Calling
Subsystem
Device line configuration
Deployment
multi-tenant
Region
not restricted
Release range
current as of 2026-09-30
Checked
2026-09-30

Sources

Cite this note

APA

WarmTransfer. (2026, September 30). Customizing Cisco MPP phone settings on Webex Calling: source note webex-calling-mpp-phone-settings-setup-lines-16-max. WarmTransfer. https://warmtransfer.net/knowledge/claims/webex-calling-mpp-phone-settings-setup-lines-16-max

BibTeX

@misc{warmtransfer-claim-webex-calling-mpp-phone-settings-setup-lines-16-max,
  title  = {Customizing Cisco MPP phone settings on Webex Calling: source note webex-calling-mpp-phone-settings-setup-lines-16-max},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/webex-calling-mpp-phone-settings-setup-lines-16-max},
  note   = {Source note webex-calling-mpp-phone-settings-setup-lines-16-max, checked 2026-09-30}
}

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