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whitepaper The networking group had reservations about enabling the voice group to use the routers that provide access to the Public Switched Telephone Network (PSTN), and the voice group didn't think the data group should have access to the Cisco CallManager.
[04 Mar 2008]
whitepaper When Cisco Systems replaced its traditional PBX systems with Cisco CallManager clusters, employees on campuses worldwide began using Cisco IP phones and Cisco IP SoftPhone software. Cisco met this challenge first by dramatically reducing the number...
[04 Mar 2008]
whitepaper Cisco needed a way to ensure business continuity if the WAN link between the hub and the remote office went down. In the event of a WAN outage, employees would need the capability to place calls, including E911 calls, and to receive calls over the...
[04 Mar 2008]
whitepaper The Cisco IP Communications solution uses Cisco CallManager in combination with a feature called Survivable Remote Site Telephony (SRST) in Cisco IOS Software to help enable companies to extend high-availability IP telephony to their branch offices.
[02 Nov 2005]
whitepaper Cisilion recommended that Cisco CallManager was deployed in a centralised design and provided telephony services for handsets located at Canary Wharf and their remote sites in Manchester and Birmingham across the WAN.
[19 Apr 2005]
whitepaper And it provides essential high-availability telephony services when a Cisco CallManager cannot communicate with a smaller office because of a WAN link failure. The Cisco CallManager SRST solution allows network managers to deploy more reliable IP...
[06 Feb 2005]
whitepaper It provides essential high-availability telephony services when a Cisco CallManager cannot communicate with a smaller office because of a WAN link failure. This paper talks about the Cisco CallManager Survivable Remote Site Telephony solution.
[04 May 2004]
whitepaper It is inexpensive, easy to deploy, automatically activated and deactivated, and provides essential high availability telephony services when a Cisco CallManager cannot communicate with a smaller office due to a WAN link failure.
[24 Feb 2004]
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