Design Guide for Cisco Unity Connection 15 - Networking

Publisher

Cisco Systems

URL

https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/connection/15/design/b_15cucdg/b_14cucdg_chapter_010011.html

Published

2023-12-18

Updated

unknown

Accessed

2026-09-25

HTTP status

200

License

Cisco copyrighted documentation; no-redistribution; short excerpts and locators only

Source notes citing this source

• Round-trip latency between hub and spoke nodes in an HTTPS network should not exceed 250 ms. in context
• HTTPS networking supports only a single-site network; multiple HTTPS networks cannot be connected to one another. in context
• Intersite networking is not supported with Cisco Business Edition. in context
• A site can have only one intersite link, so it cannot link to another Unity Connection site and to a Cisco Unity site at the same time. in context
• The Release 15 design guide says all Unity Connection locations in a site must run release 8.0 or later for intersite networking. disputed in context
• The Release 15 design guide's intrasite section contains the sentence 'Intrasite networking is supported only with Cisco Business Edition 6000/7000'. in context
• Message recall does not work between sites linked by an intersite link. in context
• The only supported way to migrate from legacy networking to HTTPS networking is manual; there is no automated migration tool. in context
• Legacy (SMTP) networking and HTTPS networking cannot run at the same time in the same network. in context
• The Release 15 design guide states that from Unity Connection 14SU3 onward the network directory limit for users is 160,000. disputed in context
• Cisco recommends choosing one location in a site as the bridgehead that holds the configuration for VPIM locations and contacts. in context
• Unity Connection VPIM networking uses VPIM version 2 (RFC 3801) over SMTP and MIME, and works with third-party voice messaging systems that support VPIM version 2. in context

Cite this source record

APA

WarmTransfer. (2023, December 18). Design Guide for Cisco Unity Connection 15 - Networking. WarmTransfer. https://warmtransfer.net/knowledge/sources/cisco-cuc15-design-guide-networking

BibTeX

@misc{warmtransfer-cisco-cuc15-design-guide-networking,
  title  = {Design Guide for Cisco Unity Connection 15 - Networking},
  author = {{WarmTransfer}},
  year   = {2023},
  url    = {https://warmtransfer.net/knowledge/sources/cisco-cuc15-design-guide-networking},
  note   = {Cisco Systems, accessed 2026-09-25}
}