Cisco Cisco Expressway 發佈版本通知
Open and Resolved Issues
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Notable Issues in this Version
: Jabber Guest has one-way audio/video when Expressway is upgraded to X8.6.1
An incompatibility between all versions of Jabber Guest server and Expressway X8.6.1 results in the Jabber Guest
client not decoding media from Jabber Guest server. The incompatibility exists in the negotiation of secure media
(SRTP/SRTCP).
client not decoding media from Jabber Guest server. The incompatibility exists in the negotiation of secure media
(SRTP/SRTCP).
The incompatibility will be addressed in one or both of the products in a future release. In the meanwhile, choose one
of the following workarounds, depending on which has least impact for your deployment:
of the following workarounds, depending on which has least impact for your deployment:
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Workaround: Downgrade Expressway to your previous version, or postpone upgrading until the issue is
resolved.
resolved.
Impact: You do not benefit from fixes in X8.6.1.
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Workaround: Disable SRTP on Jabber Guest server, which will allow RTP flow between the Jabber Guest
client and Expressway-E.
client and Expressway-E.
Impact: Unencrypted media flows in the public internet, between web client and Expressway-E. We do not
recommend this option.
recommend this option.
: SDP Decode Fails when Trying to Split IM&P and Video From Lync
This issue in X8.6 prevents a previously published Lync federation deployment from working as it did in X8.5. If you
are using the affected deployment, we recommend that you do not upgrade to X8.6.
are using the affected deployment, we recommend that you do not upgrade to X8.6.
The affected deployment is documented in Appendix 1: Federation, of the Microsoft Lync and Cisco Expressway
Deployment Guide, on the
Deployment Guide, on the
.
Limitations
Unsupported Features (General)
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DTLS is not supported through the Expressway-C/Expressway-E. SRTP is used to secure calls instead;
attempts to make DTLS calls will fail.
attempts to make DTLS calls will fail.
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SIP UPDATE method. Features that rely on the SIP UPDATE method (
) will not work as expected
because the Expressway does not support this method.
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Audio calls may be licensed as video calls in some circumstances. Calls that are strictly audio-ONLY consume
fewer licenses than video calls. However, when audio calls include non-audio channels, such as the iX
channel that enables ActiveControl, they are treated as video calls for licensing purposes.
fewer licenses than video calls. However, when audio calls include non-audio channels, such as the iX
channel that enables ActiveControl, they are treated as video calls for licensing purposes.
Unsupported Endpoint Features When Using Mobile and Remote Access
Note:
This list contains known limitations and is not exhaustive. The MRA deployment does not necessarily support
pass through of line-side features provided by Cisco Unified Communications Manager. Absence of such items from
this list does not imply that they are supported.
this list does not imply that they are supported.
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Cisco Expressway Release Note