Older Type-A SIP phones without dial rules collect digits en bloc and send them only when the user presses Dial or #, or after a phone-side interdigit timeout (10 seconds by default).
Checked 2026-10-02
- Vendor
- Cisco
- Product
- Cisco Unified Communications Manager
- Subsystem
- SIP endpoints
- Deployment
- on-premises
- Region
- not restricted
- Release range
- 5.x SRND (legacy phone models)
- Checked
- 2026-10-02
Sources
- Cisco Unified Communications SRND Based on Cisco Unified Communications Manager 5.x - Dial Plan — Cisco Systems · tier 2 current vendor documentation · Dial Plan chapter, SIP phone dialing (Type-A phones)
Cite this note
APA
WarmTransfer. (2026, October 2). Troubleshooting calls that wait several seconds before routing in Unified CM: source note cucm-interdigit-delay-troubleshooting-sip-type-a-enbloc. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-interdigit-delay-troubleshooting-sip-type-a-enbloc
BibTeX
@misc{warmtransfer-claim-cucm-interdigit-delay-troubleshooting-sip-type-a-enbloc,
title = {Troubleshooting calls that wait several seconds before routing in Unified CM: source note cucm-interdigit-delay-troubleshooting-sip-type-a-enbloc},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-interdigit-delay-troubleshooting-sip-type-a-enbloc},
note = {Source note cucm-interdigit-delay-troubleshooting-sip-type-a-enbloc, checked 2026-10-02}
}