Cisco Cisco Expressway Release Notes
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Multi-domain and multi-customer support is limited as follows:
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Prior to X8.5, each Expressway deployment supported only one IM&P domain (even though IM and
Presence Service 10.0 or later supports Multiple Presence Domains).
Presence Service 10.0 or later supports Multiple Presence Domains).
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As of X8.5, you can create multiple deployments on the Expressway-C, but this feature is still limited to one
domain per deployment.
domain per deployment.
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As of X8.5.1, a deployment can have Multiple Presence Domains. This feature is in preview, and we
currently recommend that you do not exceed 50 domains.
currently recommend that you do not exceed 50 domains.
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NTLM authentication via the HTTP proxy.
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Maintenance mode; if the Expressway-C or the Expressway-E is placed into maintenance mode, any existing
calls passing through that Expressway will be dropped.
calls passing through that Expressway will be dropped.
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The Expressway-E must not have TURN services enabled.
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Deployments on Large VM servers are limited to 2500 proxied registrations to Unified CM (the same limit as
Small / Medium VM servers).
Small / Medium VM servers).
Interoperability
, where you can
also find interoperability test results for other Cisco TelePresence products.
Notable Interoperability Concerns
X8.7.n (and earlier versions) of Expressway are not interoperable with Cisco Unified Communications Manager IM and
Presence Service 11.5(1).
Presence Service 11.5(1).
This is caused by a deliberate change in that version of IM and Presence Service, and there is a corresponding
change in Expressway X8.8.
change in Expressway X8.8.
To ensure continuous interoperability, you must upgrade your Expressway systems to X8.8 before you upgrade your
IM and Presence Service systems to 11.5(1).
IM and Presence Service systems to 11.5(1).
The symptom of the issue is an error on Expressway as follows:
Failed Unable to Communicate with <IM&P node address>. AXL query HTTP error "'HTTPError:500'"
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Cisco Expressway Series Release Notes
Interoperability