Planning Guide for Cisco Jabber 14.1 - Service discovery

Publisher

Cisco Systems

URL

https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/jabber/14_1/cjab_b_planning-guide-for-jabber141/cjab_m_planning-service-discovery-129.html

Published

2024-04-02

Updated

unknown

Accessed

2026-09-25

HTTP status

200

License

Cisco copyright; all rights reserved; no-redistribution; short excerpts and locators only

Source notes citing this source

• The Jabber 14.1 planning guide gives the Webex Messenger CAS lookup URL as https://loginp.webexconnect.com/cas/FederatedSSO?org=<domain>. in context
• During service discovery the Jabber client issues an HTTP query to a Central Authentication Service (CAS) URL for the Webex Messenger service to determine whether the sign-in domain is a valid Webex domain. in context
• When the name server returns the _collab-edge SRV record, the Jabber client tries to reach the internal network through Expressway for Mobile and Remote Access. in context
• Jabber 9.6 and later can still discover services with the legacy _cuplogin SRV record, but a _cisco-uds record takes precedence when present. in context
• The Jabber planning guide describes two DNS designs: a separate-domain design with different internal and external domains, and a same-domain design, which is either split-brain (separate internal and external zones) or not split-brain (one set of name servers). in context
• The Jabber client caches the results of its DNS service-discovery query and loads them on later launches. in context
• For service discovery at first sign-in, users enter an email-style address (username@domain), or open a configuration URL that carries the ServicesDomain parameter. in context
• In the separate-domain DNS design, the external name server may forward requests to other external name servers but cannot forward requests to the internal name server. in context
• Finding the user's home cluster lets the Jabber client automatically get the user's device list and register with Cisco Unified Communications Manager. in context
• With multiple Unified CM clusters, the Intercluster Lookup Service (ILS) lets the Jabber client find the user's home cluster and discover services. in context
• As an advanced option, users can connect to services manually from the Jabber sign-in screen instead of relying on automatic discovery. in context
• After finding the home cluster, the Jabber client retrieves the user's service profile, which holds the addresses and settings for UC services and client configuration, and it takes the authenticator from that profile. in context
• On a fresh installation, the SERVICES_DOMAIN installer parameter lets Jabber skip the email-address screen. in context
• The Jabber client requests the DNS SRV records _cisco-uds and _collab-edge, in that order of priority. in context
• When the name server returns the _cisco-uds SRV record, the Jabber client concludes it is inside the corporate network and connects to Cisco Unified Communications Manager. in context
• The Jabber planning guide's example _cisco-uds._tcp.example.com SRV record uses priority 1, weight 5, port 8443 and target host cucm1.example.com. in context
• The VOICE_SERVICES_DOMAIN parameter (VoiceServicesDomain in the configuration URL) tells Jabber to use a different DNS domain for SRV lookups than the services domain, and is used in hybrid deployments. in context
• When the voice services domain is the same as the sign-in domain, the Jabber 14.1 planning guide says not to configure voiceservicesdomain for MRA. in context
• Before querying DNS SRV records, the Cisco Jabber client issues HTTPS requests to the Cisco Webex Platform Service to decide whether it enters team messaging mode. in context

Cite this source record

APA

WarmTransfer. (2024, April 2). Planning Guide for Cisco Jabber 14.1 - Service discovery. WarmTransfer. https://warmtransfer.net/knowledge/sources/cisco-jabber-141-planning-service-discovery

BibTeX

@misc{warmtransfer-cisco-jabber-141-planning-service-discovery,
  title  = {Planning Guide for Cisco Jabber 14.1 - Service discovery},
  author = {{WarmTransfer}},
  year   = {2024},
  url    = {https://warmtransfer.net/knowledge/sources/cisco-jabber-141-planning-service-discovery},
  note   = {Cisco Systems, accessed 2026-09-25}
}