Cisco CSIM (Call Simulation) – Hidden IOS Command

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CSIM is an undocumented IOS command.  When configuring a router to act as a voice gateway it is possible to test outbound calls by originating calls from the router.  If the router is configured correctly then the far end number will ring and may be answered. Use the csim start dialstring hidden command to initiate simulated calls to whichever real-world E.164 number is desired. This allows you to determine whether you can properly go offhook…

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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 Unity Connection Ver 11 – Trouble Shooting for Virtual Memory 95% utilization:

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Cisco Unity Connection Ver 11  – Trouble Shooting for Virtual Memory 95% utilization: 1-  To solve , I increased the VM Ram from 4 GB to 8GB 2- Checked the Unity Connection DB replication 3- Checked and restarted the Cisco TOMcAT Service as it was using most of the memory resources 4-Restarted the unity connection Servers , After restarting Virtual memory Utilization went to normal 69%. Below Commands used to diagnose: admin:utils diagnose test file…

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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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Creating Cisco Jabber Custom Tabs

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Jabber custom file for Tab Have you ever thought of adding a custom tab for jabber so you can browse the web or even use your facebook on jabber… well this is how to do it   Create Custom Tab for Jabber for Windows Access the following directory, assuming you are using a Windows 7 machine C:\Users\USERID\AppData\Roaming\Cisco\Unified Communications\Jabber\CSF\Config\Cache 2. Copy the file jabber-config.xml to the same folder and rename it to jabber-config-user.xml 3. Edit the jabber-config-user.xml…

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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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OSPF VRF to OPSF Global Route leaking Examples from PE to PE

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Hi Guys , I got stuck in a situation where we need to take the Routes from OSPF VRF process to OPSF global via MPLS backbone to reach other networks across MPLS. We used the below Solution. Scenario. Servers—->PE1—–>P—–>PE2—–>Servers PE1—————————OSPF ————————-PE2 PE1————————iBGP/MPLS——————-PE2 OSPF Global in PE1——————–> OSPFGlobal in PE2  AND OSPF  VRF in PE2   Below template used in PE2 OSPF VRF to OPSF Global Route leaking Examples from PE to PE =========================================================== PE2 Side…

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How to change the VLAN ID of the Service Console in ESX from the command line/console

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Check which vSwitch the Service Console is on (and the name of the Service Console) with esxcfg-vswitch -l To remove the vlan id completely, just set it to 0 esxcfg-vswitch vSwitch0 -v 0 -p “Service Console” To set a vlan id on the service console esxcfg-vswitch vSwitch0 -v X -p “Service Console” (enter the vlan number where X is)   http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1000258  

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