Where UCCX stays on customer premises and its Unified CM moves to Webex Dedicated Instance, the round-trip time between UCCX and the Dedicated Instance Unified CM must be less than 60 ms because JTAPI is latency sensitive.

Checked 2026-09-22

RTT between UCCX and Webex DI UCM must be less than 60 msec
Vendor
Cisco
Product
Cisco Unified Contact Center Express
Subsystem
cti
Deployment
dedicated-instance, hybrid
Region
not restricted
Release range
current as of 2026-09-22
Checked
2026-09-22

Sources

Cite this note

APA

WarmTransfer. (2026, September 22). Telephony during a UCCX to Webex Contact Center migration: source note uccx-to-webex-cc-telephony-coexistence-uccx-di-rtt-60ms. WarmTransfer. https://warmtransfer.net/knowledge/claims/uccx-to-webex-cc-telephony-coexistence-uccx-di-rtt-60ms

BibTeX

@misc{warmtransfer-claim-uccx-to-webex-cc-telephony-coexistence-uccx-di-rtt-60ms,
  title  = {Telephony during a UCCX to Webex Contact Center migration: source note uccx-to-webex-cc-telephony-coexistence-uccx-di-rtt-60ms},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/uccx-to-webex-cc-telephony-coexistence-uccx-di-rtt-60ms},
  note   = {Source note uccx-to-webex-cc-telephony-coexistence-uccx-di-rtt-60ms, checked 2026-09-22}
}

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