Release Notes

Interoperability
Cisco TelePresence MCU 5300 Series 4.3(2.30) Software release notes Page 5 of 15
Call path phrase
Explicit call path description
CUCM to VCS H.323
Endpoint <--SIP--> CUCM <--SIP--> VCS <--H.323--> MCU.
CUCM to VCS SIP
Endpoint <--SIP--> CUCM <--SIP--> VCS <--SIP--> MCU.
Note: Unless otherwise stated, CUCM version 8.6(2a) and VCS version X7.1 were used in the interoperability tests.
Endpoints
This section lists interoperability issues with endpoints, by manufacturer. Where an endpoint has limitations, such as
a lack of support for encryption or content, the interoperability tests omitted the limitations and they are not listed
here.
An infrastructure issue may manifest itself as an issue with a particular endpoint or series of endpoints; issues of this
nature are listed separately under 'Infrastructure'.
Cisco endpoints
Equipment
Version
Results
Cisco Cius
sipcius.9-2-2-49
Tested: CUCM to VCS H.323 and CUCM to VCS SIP. No issues
found.
Cisco IP Video Phone
E20
TE4.1.1.273710
Tested: CUCM to VCS H.323 and CUCM to VCS SIP.
 If a conference that is sending content is placed on
hold and then resumed, the content is seen in the main
video pane after resume.(CSCty98376)
Cisco TelePresence
Jabber Video (Movi)
4.3
Tested: SIP and SIP to H.323 interworking.
 Jabber Video will display the video from the MCU in the
wrong aspect ratio when using the H.263 codec. Under
normal circumstances H.264 or H.263+ is used in
preference to H.263. (CSCtx91864)
 Encrypted calls may fail after being put on hold for
more than 15 minutes and then resumed.(CSCtz01282)
 In some circumstances an encrypted call may fail if the
user returns from the conference to the auto attendant.
(CSCtz01369)
Cisco TelePresence
System 1700 MXP
F9.1.2
Tested: H.323 and SIP.
 FECC negotiation can take several seconds on SIP
calls. (CSCty04059)
Cisco TelePresence
System 3000
1.8.1
Using CTS Series endpoints (version 1.8.1) with the MCU 5300
Series is not currently recommended.
Cisco TelePresence
System 500 Series
1.8.1
Using CTS Series endpoints (version 1.8.1) with the MCU 5300
Series is not currently recommended.
Cisco TelePresence
System Codec C60
TC5.0.1
Tested H.323 and SIP. No issues found.
Cisco TelePresence
System SX20
TC5.1
Tested H.323 and SIP. No issues found.
Cisco Unified IP Phone
7985G
4.1(7)
Tested SIP and CUCM to VCS H.323.
 The endpoint may not be able to decode video from the
MCU when H.263+ is negotiated. Under normal