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Release Notes for Cisco IAD2420 Series for CiscoIOS Release 12.1 XR

78-12264-01 Rev. D1

Caveats

Open and Resolved Caveats—Cisco IOS Release 12.1(5)XR1

There are no open and resolved caveats specific to Cisco IOS Release 12.1(5)XR1 that require

documentation in the release notes.

Open Caveats for Release 12.1(5)XR

The caveats listed in this section are open in Cisco IOS Release 12.1(5)XR.

• CSCds13360

In a configuration with two Cisco IAD2420's with digital voice ports connected via IP, Channel

Associated Signaling (CAS)-to-CAS calls fail in a “race condition” in which the terminating

gateway receives an answer from the switch before it has forwarded all digits to the switch. This

causes the receiving gateway to generate an error message, stating that it is unable to process the

event error. There is no workaround.

• CSCds42320

Issuing the Helper CLI ? command (that is, the question mark is the command) after an ip

subcommand under the global configuration mode, the “% Ambiguous command:” is returned. For

example:

uut2(config)#ip audit ? returns the % Ambiguous command: ip audit

The commands themselves work properly as long as the correct syntax is invoked. There is no

workaround.

• CSCds53207

When making 24 fax-session calls between two Cisco IAD2420's with digital voice ports connected

over T1 in a configuration that includes VoIP, MGCP, E&M immediate, Named Signal Event (NSE),

and codec G.726 32K, many fax-session calls might fail due to the following error code “400 Endpts

in transient state.” The failure rate is about 33% (112 failures out of 336 calls). There is no

workaround.

• CSCds64525

Under heavy traffic, a call might cause a port to move into a transient state. Even after sending a

“delete connection” (DLCX) message, the port remains in a transient state. There is no workaround.

• CSCds68259

Under heavy traffic for a long period of time (about six hours), analog calls will cause the following

error message (the date and time will be different):

Nov 10 12:02:20.874: rtpspi_offhook_event: cannot find control block based on

callID -1

There is no workaround.

• CSCds77162

When the transparent CCS frame-forwarding mode is enabled on controller “T1 1”, after

configuring the CLI commands ccs encap atm and ccs connect ATM0 <pvc> on interface “Serial

1:23”, these two commands also show up on interface “ATM0.” These commands can not be

removed by issuing the CLI command no ccs encap atm or no ccs connect ATM0, but when they

are unconfigured on interface “Serial 1:23”, they also disappear on interface “ATM0.” There is no

workaround.

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