Cisco Cisco TelePresence Video Communication Server Expressway 릴리즈 노트
Known limitations
Cisco TelePresence Video Communication Server X7.1 Software Release Notes
Page 25 of 37
Known limitations
Manufacturer
Equipment / Version / Protocol
Summary
Cisco
TelePresence Content Server
versions earlier than S5.2
versions earlier than S5.2
The SIP Standard registration refresh minimum setting
introduced in VCS X7.0 has a default value of 45 seconds.
Devices that request a value lower than the Standard
registration refresh minimum setting will result in the
registration being rejected with a 423 Interval Too Brief
response.
Any SIP devices, such as the Cisco TelePresence Content
Server, that do not retry their registration request after
receiving a 423 response will fail to register.
The workaround is to set the Standard registration
refresh minimum setting on the Cisco VCS to 30
seconds.
introduced in VCS X7.0 has a default value of 45 seconds.
Devices that request a value lower than the Standard
registration refresh minimum setting will result in the
registration being rejected with a 423 Interval Too Brief
response.
Any SIP devices, such as the Cisco TelePresence Content
Server, that do not retry their registration request after
receiving a 423 response will fail to register.
The workaround is to set the Standard registration
refresh minimum setting on the Cisco VCS to 30
seconds.
Polycom
HDX 9000 / 3.0.0.2 and 3.0.2 /
SIP
SIP
An H.323 call routed via Cisco VCS will not connect when
the destination is Polycom HDX registering using SIP.
Polycom HDX does not send a response to a Cisco VCS
interworked SIP INVITE request (because it contains a
“Session-Expires” header without a “Supported: timer”
extension).
Polycom have stated that this will be fixed in a future
release.
the destination is Polycom HDX registering using SIP.
Polycom HDX does not send a response to a Cisco VCS
interworked SIP INVITE request (because it contains a
“Session-Expires” header without a “Supported: timer”
extension).
Polycom have stated that this will be fixed in a future
release.
Polycom
VSX 7000 / 9.0.6.1 / SIP
A SIP call routed via the Cisco VCS to a Cisco
TelePresence System Integrator C Series (using H.323)
will connect, however the call will be disconnected when
the VSX attempts to refresh the session.
VSX attempts to refresh session using an UPDATE
request, which is not supported by Cisco VCS.
TelePresence System Integrator C Series (using H.323)
will connect, however the call will be disconnected when
the VSX attempts to refresh the session.
VSX attempts to refresh session using an UPDATE
request, which is not supported by Cisco VCS.
Polycom
VSX 7000 / 9.0.6.1 / H.323
An H.323 call routed via the Cisco VCS will connect when
the destination is Cisco IP Video Phone E20 (using SIP),
however no video will be seen on the E20.
Polycom VSX does not open the media channel that is
signaled during call set up.
the destination is Cisco IP Video Phone E20 (using SIP),
however no video will be seen on the E20.
Polycom VSX does not open the media channel that is
signaled during call set up.
Polycom
VSX / 8.5.x; v500 / 8.5.x
Multiplexed media is not supported.
Lifesize
Room / 4.6.0 / SIP
An H.323 call routed via Cisco VCS will be disconnected
when the H.323 party puts the call on-hold.
Lifesize Room (SIP) incorrectly responds to Cisco SDP
(media capability) offer.
This issue is resolved in Lifesize Room version 4.8.3.
when the H.323 party puts the call on-hold.
Lifesize Room (SIP) incorrectly responds to Cisco SDP
(media capability) offer.
This issue is resolved in Lifesize Room version 4.8.3.
Lifesize
Room / 4.6.0 / SIP
A Movi SIP call routed via Cisco VCS will connect,
however no video will be seen on the Lifesize Room.
Lifesize Room (SIP) incorrectly responds to Cisco SDP
(media capability) offer.
This issue is resolved in Lifesize Room version 4.8.3.
however no video will be seen on the Lifesize Room.
Lifesize Room (SIP) incorrectly responds to Cisco SDP
(media capability) offer.
This issue is resolved in Lifesize Room version 4.8.3.
Lifesize
Room / 4.6.0 / H.323
A C20 or E20 SIP call routed via Cisco VCS will connect,
however no video will be seen on the Lifesize Room.
C20 and E20 do not send media to Lifesize after call is
connected.
This issue is resolved in Lifesize Room version 4.8.3.
however no video will be seen on the Lifesize Room.
C20 and E20 do not send media to Lifesize after call is
connected.
This issue is resolved in Lifesize Room version 4.8.3.
Lifesize
Room / 4.6.0 and 4.8.3 / H.323
A Movi SIP call routed via Cisco VCS will connect,
however no video will be seen on the LifeSize Room
system if an HD camera is used and the requested
bandwidth is > 1MBps.
however no video will be seen on the LifeSize Room
system if an HD camera is used and the requested
bandwidth is > 1MBps.