UC Collabing – A blog on VoIP, Cisco, CUCM, CUC, UCCX, IM&P, Gateways, SME, Asterisk, Mediasense, WebEx, Lync, Skype for Business, IP Telephony, Voicemail, IVR, VMWare, SIP, H.323, MGCP, SCCP, ISDN, E1, T1, PRI.

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Troubleshooting Extension Mobility

Troubleshooting Extension Mobility Recently we learned how to configure Extension Mobility, now lets troubleshoot EM issues. Issues :- When you click on Services, it says Host Not Found. Solution : – Check that the Cisco Tomcat service is running by choosing Cisco Unified Serviceability >

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DRF Backup or Restore Failure CUCM or CUC

DRF Backup or Restore Failure CUCM or CUC You may at times receive an error “109-Unable to transfer the tar file over SFTP channel as currently configured SFTP server does not support output stream” while taking Backup or Restore in Cisco Unified Communication Manager or

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Installing or Upgrading to UCCX 10.6.1 SU1?

Installing or Upgrading to UCCX 10.6.1 SU1? Are you trying to upgrade UCCX from X version to 10.6.1 SU1 or doing a Fresh Install of 10.6.1 SU1? If yes, then be cautious about the error you may receive while installing or upgrading the UCCX Subscriber.

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Simulate PRI E1 T1 Calls

Simulate PRI E1 T1 Calls Don’t have a real PRI? Want to simulate E1/T1 PRI on your lab? If yes, then here is the solution. You need two routers, let’s say 2800 series router which has E1/T1 Card connected on each. One router would be

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Inbound and Outbound calls not working in H323 Gateway

Inbound and Outbound calls not working in H323 Gateway I have come across a situation where am unable to make inbound/outbound calls. Here is the call flowPSTN—VG-H323—MPLS—CUCM This is debug of the actual failed incoming call *Aug 9 06:10:03.923: //357/CCB999A780A0/CCAPI/ccSetMediaclassIp2ipTags:media class tags set: NR 0,

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Cisco Any Connect with DUO MFA

Cisco ASA – Cisco AnyConnect with DUO Multi Factor Authentication  Recently i though to deploy Cisco ASA in my lab and try Multi Factor Authentication with Cisco owned DUO app. After installing Cisco ASA and complete the basic configuration, i started with DUO configuration on

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Installing VMWare ESXi 5.X on bare metal

Install Vmware ESXI on bare metal VMware ESXi is a bare metal hyper-visor from VMware . ESXi is a software which has to be installed onto physical servers and on top of ESXi, Virtual Machines are installed/configured. Before installing ESXi, you need to follow the compatibility matrix