CUCM

SNR Issues when calling from EXTERNAL PSTN Number

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SNR Issues when calling from EXTERNAL PSTN Number to RING Remote Destination number: Scenario: External PSTN Number —> Gateway —> CUCM—–>IP Phone —-(SNR –> RDP—>RD ) —>Gateway—-> External PSTN Number defined in the RD Normally SNR works for internal extensions only , If you need to allow SNR to work for External Calls  you need to allow below parameters in the CUCM to generate the Call from Called ( Internal Extension ) As Suggested by…

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POTS-to-POTS Call Routing Considerations bandwidth

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POTS-to-POTS Call Routing Considerations Occasionally, you must route calls between POTS dial peers. CAC might cause this, such as when a call from a PBX is denied admission to the WAN and sent back to the PBX. Or a call from an analog phone might be routed over the PSTN. The ability to switch calls between POTS dial peers is enabled by default on Cisco gateways. Many of the CAC mechanisms that are described in…

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Cisco UCM 11 and LDAP Group Filtering

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Introduced in UCM version 11 is the ability to synchronize groups from Active Directory. The primary driver is to have Active Directory groups available in the Cisco Jabber contact list. One problem this brings up is that if you’re synchronizing from the base DN you’ll import all security groups. So you’ll need an effective filter to only get the groups you want. Generally speaking distribution groups are an ideal target for what you want represented…

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How to Identify an Unexpected Shutdown of a CUCM, UC, UCCX, CER, or Cisco Prime Server

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Introduction This document describes how to identify an unexpected shutdown of a Cisco Unified Communications Manager (CallManager) (CUCM), Cisco Unity Connection (UC), Cisco Unified Contact Center Express (UCCX), Cisco Emergency Responder (CER), Cisco Prime, or any application that runs on top of Cisco’s customized Voice Operating System (VOS). If the server experiences an unexpected shutdown, the file system consistency cannot be guaranteed. Files might be removed unexpectedly, ownership of file permissions might be changed, or the contents of files might…

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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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Error Update failed. Java.sql.SQLException: Memory allocation failure during query processing

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Problem Description:   The customer was not able to change device pool in the sip trunk. it was giving error Update failed. Java.sql.SQLException: Memory allocation failure during query processing. Troubleshooting Performed Collected call manager traces, Informix logs and checked the rhosts, sqlhosts in the unified reporting page of the call manager. Rhosts and sqlhosts were fine. Checked the db replication of the customer it was fine. Suggested customer to restart A Cisco DB service of…

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Dedug SIP trunk from CM to CUBE

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Dedug SIP trunk from CM to CUBE   From TAC The link below outlines how to enable detailed traces on CUCM cluster and collect them: Set Up Cisco CallManager Traces for Cisco Technical Support:http://www.cisco.com/en/US/products/sw/voicesw/ps556/products_tech_note09186a0080094e89.shtml Now this is the best bit of code i have seen in a long time! Enable SIP debugs, stores them in a txt file on the flash and when the error condition “503 Service Unavailable” happens do some show cmd and…

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Unified CM High Availability / Call Processing Redundancy / Upgrading CUCM Cluster

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Unified CM High Availability Because of the underlying Unified CM clustering mechanism, a Unified Communications System has additional high availability considerations above and beyond hardware platform disk and power component redundancy, physical network location, and connectivity redundancy. This section examines call processing subscriber redundancy considerations, call processing load balancing, and redundancy of additional cluster services. Call Processing Redundancy Unified CM provides the following call processing redundancy configuration options or schemes: Two to one (2:1) — For every two…

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Cisco CUCM : Troubleshoot Backup Issue

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Hi Guys , I found below link useful when troubleshooting CUPS backup issues, Original Link # https://bsoftbangalore.wordpress.com/2012/06/14/cisco-cucm-7-x8-x-troubleshoot-backup-issue/ Cisco Unified Communications Manager backups are not running as scheduled. All Disaster Recovery Framework (DRF) services are down, and no new devices, schedules, or statuses can be viewed from the DRF console. Also, when you access the DRF admin pages, this error message is received: Status: Local Agent is not responding. This may be due to Master or…

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