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Published byCory Alexina Butler Modified over 9 years ago
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IPT @ UCAR Teresa Shibao & Paul Dial
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The Major Components of IPT Communications Manager (formerly Call Manager) Voicemail Phones Miscellaneous others
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Communications Manager (CM) Current version 4.1(3) Windows OS 3 CMs in our cluster – Publisher - keeper of the database, call records, tftp server (device config files), and where changes are made – 2 Subscribers – handle the traffic, phones, gateways (trunks) and voicemail access
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Communications Manager (cont.) Upgraded from version 3.3(3) in April of 2006 Current version is very stable – Provides increase redundancy – Long distance account codes kept in CM database instead of separate server/application – A few additional features provided to users through the web interface
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Cisco Unified Communications Manager Releases & Upgrade Paths CCM 3.X CCM 4.X CCM 5.X Shipping 4.2(3) 3.3(5) 4.1(3) Windows Server 2000 4.0(2a) Windows 2000 2005 2006 5.0(4) Upgrade Path 5.1(1) CCM 6.X6.0(1) Appliance Model Released 6/2007 2007 4.3(1) Appliance Model 4.2(1) Windows Server 2003 5.1(2) Our Planned Upgrade Path
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CM Futures Move to Linux OS Database resiliency – Features still work when publisher off-line Applications that previously required a separate server are being migrated into CM – Mobile Connect Simultaneous ringing for multiple devices Single voice messaging system Adding new features all the time
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Voicemail Still using the original hardware purchased in January 2003 Windows OS, MS Exchange based 1650 user mailboxes Current version - Unity 4.0(5) Upgraded from version 3.1(5) In December of 2006 – Cisco support was ending – No real additional features – Migration path to newer Unity versions & Unity Connections
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Voicemail (cont.) Currently testing Unity Connections 1.2 – Time to replace existing server – Still Windows OS – Some IMAP or web interface capabilities? – Voice Recognition? Can be upgraded to version 2.0 – Appliance based (Linux)
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Phones ~2050 of our standard desk set (7960G) in the system database Phones are 10/100 switches – What do we do as we move to 1G? Cisco has not published an End of Life notice – Usually 5 years of support after notice
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Phone Futures Should we move to SIP? Other vendors? Wireless?
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Miscellaneous Others Analog – Started out with problem prone 6500 blades – VG248s performing well Monitoring – Initial product was Prognosis – Cisco Unified Operations Manager (CUOM) Conferencing – Conference Connection – audio only – Meeting Place Express (Linux) Emergency Responder (CER) – No real changes here, very stable
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Issues Our biggest problem has been with phones – Phones get unplugged and are not locatable – Hook switch failures Monthly Windows patches Hardware rollover – Servers – Gateways – Eventually phones
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No change is invisible Test, test and check again Users notice differences Notification is important
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