4
Bug Fixes OL-1798-01
New and Changed Information
•CSCdv01742
IP phones in fallback mode connected to the Catalyst 4224 are unable to transfer calls.
When IP phones are connected to the Catalyst 4224 and they are operating in fallback mode, these
phones lose the ability to transfer calls. If a user tries to transfer to an invalid directory number, the
transferring phone receives a reorder tone but is able to resume the original call. However, if the user
enters a valid directory number, both the calling phone and the transferring phone are disconnected.
•CSCdv02746
ISDN BRI on the Catalyst 4224 cannot receive calls on the second B-channel.
This problem occurs in a Catalyst 4224 with an ISDN BRI interface module. The first B-channel of
the BRI interface module can receive calls, but the second B-channel cannot. When a call is sent to
the second B-channel number, the router sees two ISDN SETUP messages approximately 3 seconds
apart. For the first SETUP message, the router does not answer. For the second SETUP message, the
router responds with a DISCONNECT with Cause i = 0x80A2 (No circuit/channel available). All
the ISDN SETUP messages for both calls contain the channel id = 0x89.
At this point, if someone tries to call the first B-channel number again, the call will not work. You
have to perform a shut/no shut to the BRI interface before the first B-channel can receive calls
again. In addition, you will have to wait for some time before you can call the router. If you call the
first B-channel right after Layer 2 is up, the router will respond with a DISCONNECT message with
Cause i = 0x80AF (Quality of service unavailable). This error occurs because the VTSP still shows
that the router is in the S_CONNECT state. Only after a while does the router go back to a normal
state, and call can be place to the first B-channel again. This behavior is cyclical.
From the show and debug commands, it appears that the router did not release the CCB for the first
call to the first B-channel. The sh isdn status command shows that there are no Layer 3 calls active,
but there is still a CCB present for the VOICE. This occurs only after a call is placed to the second
B-channel of the BRI interface.
•CSCdv08920
FXO supervisor disconnect fails on incoming calls.
Incoming calls to the FXO port may ring a device such as an IP phone connected to the
Catalyst 4224. If the caller goes back on-hook within a few seconds, the called phone continues to
ring. The remote on-hook is apparently not being detected.
•CSCdv12080
IP phones are not getting powered up.
Bug Fixes in Cisco IOS Release 12.1(5)YE3
The following reported bugs have been fixed or resolved in Cisco IOS Release 12.1(5)YE3:
•CSCds63736
ATM interface crash due to CSCdr56182.
Fixed the interface null reference that caused the router to crash at boot time.
•CSCdu64055
ipx help not available.
Fixed CLI help function so that help text now displays for the ipx command.
