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Cisco IP/VC 3526 Notas de lançamento

Important Notes

Known Issues

Release Notes for Cisco IP/VC 3526 PRI Gateway and Cisco IP/VC 3540 PRI Gateway Release 3.0
78-16907-01
Support for the H.264 video codec.
•
The gateway can detect in-band DTMF tones on the ISDN side and generate
•
corresponding H.245 out-of-band signals on the IP side for both voice and
video calls.
Support for a new default Quality of Service option for optimal TOS setting
•
selection.
To ensure that your gateway is secure from outside infiltration, we recommend
that you change the default settings of the following options:
Gateway user name and password
•
SNMP service community parameters in the Board Basics tab
•
We recommend that you use Microsoft Explorer version 5.0 or later.
•
The Ethernet port may stop responding if disconnected and then reconnected
•
when there are active calls in the gateway. To restore Ethernet port
functionality, reset the gateway.
The Max Digits and Maximum Digits Send fields in the ISDN Information
•
section of the PRI Port tabs are for future use.
DTMF interpretation problems occur when using the G.723.1 audio channel
•
in gateway-to-MCU voice calls. Use the Force711ForMCU enable advanced
command to configure the gateway to open a G.711 channel only. This setting
is enabled by default when the gateway is shipped with transcoders. When the
gateway has no transcoders or when transcoder capabilities are disabled,
disable the setting by using the Force711ForMCU disable advanced
command.
Some PSTN switches react slowly to a "busy out [off]" request message sent
•
from the gateway when the ISDN Rollover feature is in use. As a result,
dialing from the ISDN side may return a busy tone immediately after the
"busy out [off]" request message is sent to the switch. In such cases, calls do
not reach the gateway, and additional dialing is required.
Important Notes
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