Author: Admin

Video Conferencing Equipment and Services for Installation & Maintenance – Cisco TANDBERG, Polycom, LifeSize, Sony, Vaddio

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Video Conferencing Equipment and Services for Installation & Maintenance – Cisco TANDBERG, Polycom, LifeSize, Sony, Vaddio Original Article Firewall Port Forwarding for H.323 video H.323 uses a single fixed TCP port (1720) to start a call using the H.225 protocol (defined by H.323 spec) for call control. Once that protocol is complete, it then uses a dynamic TCP port for the H.245 protocol (also defined by the H.323 spec) for caps and channel control. Finally,…

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Cisco 7800 Series Phones – CUCME Support

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Below is the recommended config   New phone model Recommended Fast-track config 7821 voice register pool-type  7821 xml-config maxNumCalls 6 xml-config busyTrigger 6 xml-config custom sshAccess 0 num-lines 2 description Cisco IP Phone 7821 reference-pooltype 6921 7841 voice register pool-type  7841 xml-config maxNumCalls 6 xml-config busyTrigger 6 xml-config custom sshAccess 0 num-lines 4 description Cisco IP Phone 7841 reference-pooltype 6941 7861 voice register pool-type  7861 xml-config maxNumCalls 6 xml-config busyTrigger 6 xml-config custom sshAccess 0…

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Unity to Exchange Connections

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Increasing the Number of Connections If you have more than 2000 users on a Unity Connection server or more than 80 milliseconds of latency, you can increase the number of connections from the default value of four. Note the following: The maximum number of connections is 64. Never decrease the number of connections to fewer than four. After you change the number of connections, you must restart the Unity Connection Mailbox Sync service in Cisco…

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IOS Tricks with TCLs

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Parser Find the subcommands under a specific command such as ‘Clear’ that contain “call” keyword. Example: clear call voice … Router# show parser dump exec | inc clear .*[a-z]+.*call 1 clear controller call-counters timeslots 1 clear controller call-counters timeslots 1 clear controller call-counters timeslots 1 clear controller call-counters timeslots 1 clear controller call-counters timeslots 1 clear controller call-counters timeslots 1 clear controller call-counters 1 clear controller call-counters system-hwm 1 clear controller call-counters all 1 clear call voice causecode long-dur-call 1 clear call voice causecode calling-number 1 clear call voice causecode called-number 1 clear…

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UCS- Invalid Keyring certificate Alert

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Cisco UCS  Error # default Keyring’s certificate is invalid, reason: expired. ————————————————————————— FI-B# show fault 252396 detail Fault Instance Severity: Major Code: F0909 Last Transition Time: 2015-11-20T11:26:41.156 ID: 252396 Status: None Description: default Keyring’s certificate is invalid, reason: expired. Affected Object: sys/pki-ext/keyring-default Name: Pki Key Ring Status Cause: Invalid Keyring Certificate Type: Security Acknowledged: No Occurrences: 1 Creation Time: 2015-11-20T11:26:41.156 Original Severity: Major Previous Severity: Major Highest Severity: Major —————————————————————————-   We just need to…

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IOS: ROMMON on the C6500/Sup720 – Sup crashed

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IOS: ROMMON on the C6500/Sup720 Recently, one of my Supervisor 720 goes into a permanent reboot cycle. I was able to break it into ROMMON mode, but I couldn’t get it to ‘stick’ the boot settings. Finally…. Finally, one of the other guys came and looked over my shoulder and pointed out that I was making two mistakes. Here is the correct syntax: rommmon 2 > BOOT=bootdisk:s72033-advipservicesk9_wan-vz.122-18.SXF14.bin rommon 3 > set PS1=rommon ! > LOG_PREFIX_VERSION=1 SLOTCACHE=cards; ACL_DENY=0…

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show fabric-interconnect inventory

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show fabric-interconnect inventory To display fabric interconnect hardware information, use the show fabric-interconnect inventory command. showfabric-interconnectinventory [ id { a | b } ] [expand] [detail] Examples This example shows how to display a list of fabric interconnect hardware: switch-A# show fabric-interconnect inventory ID PID Vendor Serial (SN) HW Revision Total Memory (MB) ——– ————— —————– ———– ———– —————– A N10-S6100 Cisco Systems, In SSI12480266 0 3549 B N10-S6100 Cisco Systems, In SSI12520C81 0 3549…

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error ssl_error_weak_server_ephemeral_dh_key

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Firefox Error/Bug ” error ssl_error_weak_server_ephemeral_dh_key ” Solution : Note that users with the current and older Firefox releases can toggle these prefs to false on the about:config page to disable the cipher suites that are involved with the Logjam vulnerability. security.ssl3.dhe_rsa_aes_128_sha security.ssl3.dhe_rsa_aes_256_sha Bug 1138554 – NSS accepts export-length DHE keys with regular DHE cipher suites Logjam: How Diffie-Hellman Fails in Practice: https://weakdh.org/

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Cisco Bug: CSCur40004 – Need to support Multicast Music on Hold for Jabber clients

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Last Modified https://tools.cisco.com/bugsearch/bug/CSCur40004/?referring_site=bugquickviewclick Aug 21, 2015 Product Cisco Jabber for Windows Known Affected Releases 10.0(0) 10.5(2) 10.6(1) 11.0 9.0(6) 9.1(5) 9.2(7) 9.3(0) 9.6(3) 9.7(5) Description (partial) Symptom: Jabber clients do not support Multi cast MOH (MMOH) Conditions: MMOH is setup on the MRGLs used by Jabber Workaround: Use Unicast MOH for Jabber clients. Further Problem Description: This is an enhancement request.

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CUCM Mixed Mode With Tokenless CTLs

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CUCM Mixed Mode With Tokenless CTLs move phones registered to the old cluster to instead register to the new cluster. Download the CallManager.pem from new cluster pub and upload that cert as phone-trust to the old cluster. This will enable the old cluster TVS to have TVS-aware phones trust     the    new cluster.     When the phone is told (say, via change in DHCP option 150 value) to register to the new cluster, it will fail…

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