Issue a copy startup-config running-config to re-assert the missing commands. Use a replacement card that is the same as the original card. This condition will not occur if a card that is the same as the original is used or if a differently configured card is placed in a different slot. Under rare circumstances, a Cisco router may reload because of a segmentation violation SegV when fax calls are present.

Ringback is not available for calls coming in from a PSTN.

Cisco IOS Images - TechRepublic

IP phones do not ringback on the network side. Alignment traceback when transfer and conference call. Tracebacks are observed during conference and at times, during regular calls. The tracebacks are on misaligned accesses to memory. They are subsequently corrected by the hardware but prints to console are annoying and can be viewed as serious potential issues.

Bad voice-quality during conference call. Conferencing a-law and u-law mixes doesn't work as some legs in ITS end up with a-law and some with u-law which gives bad voice quality.

This fix is only applicable for a network that has a mixture of A-law and U-law codecs configured in the network. Configure all gateways in the network to use same codec type of either A-law or U-law. This problem is only on Cisco series platform. The hardware version, revision information, and other conditions are displayed wrongly.

The port does not go on-hook when a supervisory disconnect tone is sent from the PSTN. If the caller hangs up at this point, the PSTN sends a supervisory disconnect tone to the FXO where no action is taken which results in not freeing up the port immediately. The IP phone locks during a call to a call forward busy number.

When a call is made from phone A to another phone phone C , the call can be answered normally. When a second call is placed from another phone to phone A via a loopback-directory number loopback-dn , the call is forwarded to phone B. As this call is received, the original call is incorrectly cleared by the node on phone C while the call is still shown as "up" on phone A.

When this condition occurs, phone A is no longer able to place or receive calls and has to be powered down to be restored to working condition. This condition affects only the first IP phone in the internal control table on the router. To prevent this condition from occurring when the router is operating in the ITS mode, add a dummy phone entry as the first IP phone or "ephone 1" in the internal control table on the router to prevent an active phone from being listed as the first IP phone in the internal control table of the router.

Reload the router to ensure that the dummy phone occupies the first position in the control table. There is currently no workaround to this condition if the router is operating in the Survivable Remote Site Telephony SRST mode call manager fall back. When using loopback-dns for outgoing calls, the router presents a ringing tone to the IP phone caller as soon as the call has been routed and before the state of the called number is known.

If the called number is busy, this can result in a ringing and then busy tone being played to the caller. This does not happen if loopback-dns are not used, or if they are used for incoming calls. When a Keyswitch IP phone user receives an incoming call, and they then attempt to transfer that call, but while dialling they realize they are dialling a wrong number, the transferrer has two options. If they incorrectly select "New Call", the phone displays the previous dialed digits.

If the caller then dials more digits, these appear after the previous digits.

Other versions

The phone however only dials the digits presented after the "New Call" button was pressed, and the call is successful. The problem is observed only when the second call clears, and only if another IP phone is used in addition to the IP phone which set the conference up. Voice path is re-established if the phone that initiated the conference temporarily places the remaining caller on-hold and then immediately resumes the call.

This release integrates the DSPware 3. Upgrading to the DSPware 3. This section describes only severity 1 and 2 caveats and select severity 3 caveats. An error can occur with management protocol processing.

How to install

Please use the following URL for further information:. Problem is occurring when the customer is attempting to receive dial-tone on ISDN trunks. The method that the customer uses to obtain this dial-tone is to configure the ISDN trunks for overlap-receiving, and send in a setup message with no called party number. This causes the dial-tone from the router to not be heard. Performance for the encrypt path degrades when using this image with the hardware encryption card.

The performance loss is due to encrypted packets being process instead of fastswitched. IPSEC applied to interfaces while using the encryption accel card. When dialplan pattern is configured for the local IP Phones, the existing call-forward commands under ephone-dn are not entered under the E. This can cause a call not getting forwarded if you dial the entire E number. This problem happens only if you add or edit the existing dialplan pattern with call-forward commands already in place.

Cisco 2600 Series - Cisco IOS Release 12.2(2)XT

One way to avoid this problem is to configure the right dialplan pattern before configuring the call-forward commands. Additionally, if you modify the dialplan pattern commands, configure the call forward commands again under ephone-dn. This creates the call-forward commands under the E dial-peers created. Music on hold works inconsistently in certain conditions. A calls B and conferences to C. B puts the conference on hold. B resumes the call and after a while puts the conference on hold again. Now only A initiator hears the MOH.

If the WAN link comes back up during the call and the call is between two IP phones or two analog phones, the call is not dropped. However, if the call is between an IP phone and an analog phone, the call is dropped. Documentation is available as printed manuals or electronic documents, except for feature modules, which are available online on Cisco.

Technical Documents: Release Notes: Also please exercise your best judgment when posting in the forums--revealing personal information such as your e-mail address, telephone number, and address is not recommended. Please note: Do not post advertisements, offensive material, profanity, or personal attacks. Please remember to be considerate of other members. All submitted content is subject to our Terms Of Use. If so, is there anyway of downloading the update without having a service contract?

Thanks for your help. Share Flag. Thread display: All Answers. Collapse -. Thank you 0 Votes. New question. Thanks 0 Votes. Try reading some genuine, non-pirated, printed material. Are you Serious? This one is not the latest At this moment, it is not possible to emulate Catalyst switches with Dynamip. This is due to the impossibility to emulate ASIC processors used in those type of devices.

However , if you want to use Dynamips you can use the EtherSwitch module with s, s and s Series. Keep in mind that this module works differently uses the vlan database etc. To recap: You can import many images using Virtualbox or VMWare. Download Documentation Community Marketplace Academy. Important points Availability IOS IOS images are lower in cpu and memory so you can fit more of them in one topology. Important points IOS IOS