Source note · Expressway business-to-business calling
In the X15.4 SIP protocol configuration the default transport modes are UDP Off, TCP Off, TLS On and Mutual TLS Off.
Checked 2026-09-25
- Vendor
- Cisco
- Product
- Cisco Expressway
- Subsystem
- SIP transport
- Deployment
- on-premises
- Region
- not restricted
- Release range
- X15.4
- Checked
- 2026-09-25
Sources
- Cisco Expressway Administrator Guide (X15.4) - Protocols — Cisco Systems · tier 2 current vendor documentation · Protocols > SIP > Configuring SIP (transport mode defaults)
Cite this note
APA
WarmTransfer. (2026, September 25). Expressway business-to-business calling: source note expressway-b2b-calling-sip-tcp-default-mode. WarmTransfer. https://warmtransfer.net/knowledge/claims/expressway-b2b-calling-sip-tcp-default-mode
BibTeX
@misc{warmtransfer-claim-expressway-b2b-calling-sip-tcp-default-mode,
title = {Expressway business-to-business calling: source note expressway-b2b-calling-sip-tcp-default-mode},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/expressway-b2b-calling-sip-tcp-default-mode},
note = {Source note expressway-b2b-calling-sip-tcp-default-mode, checked 2026-09-25}
}