Release Notes
Interoperability
Cisco TelePresence Server Software Release Notes 3.1(1.95) Page 19 of 31
Call path phrase Explicit call path description
TIP Endpoint ← SIP → Cisco Unified CM ← SIP → Cisco
VCS/TelePresence Conductor ← SIP → TelePresence Server with
TIPnegotiation (requires compatible endpoint)
Endpoints
This section lists interoperability issues with endpoints. 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 TelePresence
Endpoint Software Comments
Cisco IP Video Phone E20 TE4.1.2.299752 Tested H.323 and SIP:
n Using hold/resume functionality on a Cisco IP
Video Phone E20 stops the endpoint from
receiving content from the Cisco TelePresence
MCU or Cisco TelePresence Server. The
endpoint receives content in the main video.
(Issue identifier CSCty98376)
Cisco Jabber for iPad 9.2 Tested SIP and SIP to H.323 interworking:
n Transition from video to content or content to
video may lead to transient video issues.
(Issue identifier: CSCud64312)
n Video may occasionally fail when a call that is
experiencing packet loss and has FEC
protection enabled is optimized from 1080p
down to 720p. Pressing the multifunction
sleep/wake/on/off button and then pressing it
again may work around this issue
Cisco Jabber for Windows 9.2.1 Tested CUCM to VCS/Conductor SIP and CUCM
to VCS H.323 interworking:
n Interworking calls from this endpoint is not
recommended
Cisco Jabber Video for TelePresence (Mac
OSX)
4.6(17194) Tested SIP and SIP to H.323 interworking:
n Video to and from this endpoint can have
incorrect aspect ratio when using H.263 or
H.263+ (these are not the default codecs)
Cisco Jabber Video for TelePresence
(Movi)
4.6.3.17194 Tested SIP and SIP to H.323 interworking:
n In some cases increasing resources for a call
will result in low frame rate from the endpoint.
(Issue identifier CSCud79739)