Symptom NULL is accepted as a name for class-maps and policy-maps. No error message is displayed. Conditions Create a class-map or policy-map with "" or " " or any other similar combination as the name. Symptom Failed to get media source address for a stream in a DO call. Conditions Failed to get media source address for a stream in a DO call with rsvp. Symptom When using mgcp dtmf-relay type nte-gw, a sniffer trace will reveal that digits are sent both in-band within the audio stream and out-of-band dtmf-relay.
Because of this, double digits can be seen in Unity and MeetingPlace. Workaround Use mgcp dtmf-relay type out-of-band. Symptom If a certificate map is changed or added to the trustpoint, the pub key cache for the peers is not cleared.
This makes it possible for a client which was connected in the past to reconnect again even if its certificate was banned by the certificate map. Conditions Only seen with IE8. Workaround IE6 can be used as a workaround. Some pages on server A automatically does a silent login to server B and gets the information required to generate reports.
When using IE8 this login information does not gets properly propagated to the backend server B which results in redirection request to the login page from server B. Symptom Tunnel sources get mixed up when tunnel interfaces are configured with serial subinterfaces as sources and the router is reloaded.
Conditions The symptom occurs only after a reload or when a saved configuration is applied to the running configuration.
Conditions Phone A does a call blast by calling pilot number xxxxx. All the phones start ringing till time out 60 seconds then call lands on the final phone B. Phone B answers the call and gets connected, then it checks for called number at Phone A. The final phone's number should be displayed. But the pilot number is displayed.
Conditions The issue occurs when ICMP path jitter operation is configured on the router with invalid source address. Platform is supB with Workaround Configure the SLA operation with the right source address. Symptom Application set window scale factor does not get used by the accepted connection, instead the scale factor set by the global command ip tcp window XXXX is used. Conditions ip tcp window XXXX configured to a higher than value. Connection has window scale enabled on both sides.
Conditions The router runs into low-mem condition due to mem-fragmentation in certain voip-perf testing. It has a known work-around and is not a problem as such unless similar level of bursty traffic with the peculiar size of request is generated as used in testing. Also, there is no support for iPhone and iPod safari browsers. Workaround Page is displayed but quality is poor.
Symptom The called name is not displayed on the caller sccp phone when the call is forwarded to non-sccp endpoint ie. The called number is displayed correctly. Workaround Define the pool on the NAS or as a dynamic pool on the radius. Symptom When we load an FPM tcdf file on the router, a memory leak is seen.
However, this is a one time operation and has minimal impact. This happens in all the advanced images where FPM is used.
This memory leak is not seen until we load a tcdf file. This issue is specific to the PI11 codebase. Conditions ipbasek9 is the only package enabled.
Conditions Only for SBC proxy address configuration and only if either of the addresses is zero. Symptom cme on cadvipservicesk9-mz.
For example:. Symptom Queue-limit configured in ms is not displayed in show policy-map int output. Conditions This happens in a scenario where queue-limit is configured in ms in class-default. Symptom Chunk memory leaked while configuring the ip nat pool. Conditions While configuring the pool with subnet mask smaller than required length for the start and end ip address.
Symptom Using the command default dest-ipaddr for udp-echo, udp-jitter, and tcp-connect causes a device to crash. Conditions The symptom is observed with the command default dest-ipaddr. Workaround Do not use the command default dest-ipaddr. This sets the address to 0. Symptom A Cisco router may crash when configuring the object id in config-event-objlist subconfiguration mode. Conditions This symptom is observed when entering the cns config notify command.
Symptom NIOS watchdog timer times out. Conditions This symptom is observed when an MC modem is power-cycled. Workaround Reload the router. Workaround Once the phone state changes, it will reflect the real state to the blf sessions. Symptom The CME does not process the incoming sip message. Conditions Call forward scenario where incoming sip messsage is received. Workaround Configure : voice service voip no notify redirect ip2ip. The IOS version is Workaround Use earlier IOS such as Remove voice source-group configuration.
Conditions Happens when the CME is loaded with Workaround Call will flow through. Symptom User can not press the button configured as trunk-dn monitor to pick up the parked call.
Or user cannot press the button configured as M button to speed-dial. Conditions Pressing the monitor button, no OP. Symptom Not able to configure call-forward system redirecting-expanded. Conditions Not able to configure call-forward system redirecting-expanded on a router. Symptom After a license upgrade from 48 to 64 user license on a UC, the Cisco series phone registration fails with the following errors in debug ephone register output:. The problem only occurs when the ephone tag value for this phone registration is 56 or higher.
Workaround Use an ephone tag that is of lower numerical value. Ephone 55 or lower will work. Symptom When shared line has 2 calls, and these 2 calls disconnect at the same time, the port might hang. Symptom Build failure is happening for platform images. Conditions FXO ports are members of a huntgroup where the first member port is disconnected or down.
Unconfigure max-retry. Under each port, configure "timeouts power-denial 0" so that disconnected ports are moved to offhook state and will not be hunted.
Symptom CPU profiling under interrupts is not reliable. Symptom A Cisco router reloads when trying to connect to irc. Conditions The symptom is observed only in the first 36 hours following a reload. Workaround Do not connect to irc. Conditions This happens when the CLI's parser chain was moved, hence missing them on the platforms.
Need to ensure the parser chain is implemented as platform independent. Symptom Consult transfer with third party sip endpoints results in one way audio when the third party endpoint has delayed response to resume request which includes change in rtp stream parameters i. Conditions sip supplementary services refer is disabled. Symptom IP connectivity fails for the interface following extended pings from FastEthernet interface.
The show interface command will indicate that the output queue is wedged:. No indication at this time that this is specific to these images.
This problem has not yet been seen on an interface in full duplex mode. Symptom Router reloads with a bus error and no tracebacks. The installed IOS version is any Workaround There is no known workaround available. Subsequent calls through that same channel continue to fail with "resource unavailable" cause value equal to 47 even after DSP resources have been made available to handle the call.
The call must first fail with a legitimate DSP allocation error. Any call made through the same channel as the failed call will also fail. DSP allocation failures on gateway can be checked through the use of the exec command show voice dsp group all.
The last line of the show command output includes a counter for "DSP resource allocation failure". This issue can also be seen in some cases upon bootup. When a gateway is reloaded, system resources will come up with a slightly different timing.
If, for example, a PRI interface comes up before the DSP resources have fully initialized, there may be a similar failure. Workaround The workarounds are as follows:.
When the gateway comes back up, take the voice-port out of shutdown. An increase of almost 10 percent in CPU utilization is observed with every voice call. Workaround Remove the AIM compression card from the motherboard. Outbound calls to the SIP provider have one-way audio. The internal IP phone can hear the remote party, but the remote party cannot hear the internal IP phone.
Conditions TNP phones with firmware 8. Workaround Wait for about a minute, and the port will automatically recover back to registered.
Symptom A call from a night hunt forwarded to BACD dial by an extension to an ephone call forwarding no answer to voicemail goes to the night hunt number and not the last redirected number. Andrew Hancock - VMware vExpert. See if this solution works for you by signing up for a 7 day free trial. What do I get with a subscription?
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