Cisco Cisco Expressway 维护手册

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Mutual TLS authentication can now be configured for SIP calls (Configuration > Protocols > SIP). Two new
parameters were added Mutual TLS mode (default Off) and Mutual TLS port (default 5062).

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A new zone parameter called SIP parameter preservation controls whether the SIP URI and Contact
parameters are preserved between the zone and the B2BUA.

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A new zone parameter called Preloaded SIP routes support controls whether the zone processes SIP INVITE
requests that contain the Route header.

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There is a new command line option to change the cipher suites used for SIP TLS connections. The command
takes a colon-delimited string of cipher suites (see

https://www.openssl.org/docs/apps/ciphers.html#CIPHER-LIST-FORMAT

). For example, to set the current

Expressway default suite, use:

xConfiguration SIP TLS CipherSuite: ALL:!EXP:!LOW:!MD5:@STRENGTH:+ADH

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The diagnostic log now includes two new .xml files, to record the xconfig and xstatus of the Expressway at the
time the log was taken.

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The Call Detail Records (CDR) switch has moved from the System > Administration page to the Maintenance
> Logging page.

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The CLI commands

xCommand LoginUserAdd

and

xCommand LoginUserDelete

have been replaced by

xCommand

CredentialAdd

and

xCommand CredentialDelete

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The hop count logic has changed so that internal hops between the Expressway application and its B2BUA do
not decrement the hop count.

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Several advanced zone parameters have been removed because they are no longer required. These are SIP
SDP attribute line limit mode, SIP SDP attribute line limit length, and SIP Duo Video filter mode.

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The Maximum authorizations per period default has increased to 8.

X8.5.3

X8.5.3 is a maintenance release. No new features are introduced. X8.5.3 supersedes X8.5.2.

Feature / change

X8.5.3

X8.5.2 (withdrawn)

X8.5.1

X8.5

KPML

Supported

Not supported