SIP Trunking in the Next-Generation Contact Center by Acme Packet
the wake of the economic downturn, every contact center is looking for ways to cut capital and operating costs. SIP trunking services have emerged as an attractive low-cost replacement for ISDN-PRI trunks into the contact center. Further, service providers have begun aggressively promoting SIP trunks both to protect their existing contact center customers and to...
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Hash table how-tos for mainframe programmers
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Robert Crawford, Contributor
I like to put referential data into external tables. It makes programs easier to maintain and it's much safer to change a table than logic. The only catch is that system level code, particularly in exits, must be very efficient. You wouldn't want to do a linear search of a fifty entry table for every file I/O as that would tend to...
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Disaster recovery on the mainframe: New options for site recovery
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Robert Crawford, Contributor
For the maximum benefit and fastest recovery each data center should be a "hot-hot" split of the production workload.
DASD vendors have added synchronous data replication over limited, campus-wide distances, which are designed so that a write to a primary disk will be replicated to an alternate volume in another box. Since it is synchronous, the system...
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Web service technologies primer
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Wayne Kernochan, Contributor
in a directory, which can be accessed using Universal Data Description Interface, or a UDDI.
Communicate between Web services using SOAP (Simple Object Access Protocol), which is built on the XML (eXtended Messaging Language) messaging protocol. More specifically, in order to communicate with a Web service, an application will add Web service...
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Experian drills backup water supply to cool data center
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Mark Fontecchio, News Writer
Three summers ago, a 76-inch main line that feeds water from Lake Lavon to 29 cities and towns in Texas broke. That was a disaster for credit services giant Experian, which relied on city water to supply the chillers that cool its McKinney data center. "We lost all city utility as far as water pressure," said Russ Burlew, the data center facility manager. "It...
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CA announces Mainframe 2.0
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Mark Fontecchio, News Writer
use for less experienced IT staff, to create greater uniformity among products, and to provide a service to remove mainframe burdens.
Rich Ptak, an analyst at Ptak, Noel & Associates, believes that CA's initiative is a good idea. "It's a step in the right direction," Ptak said. "CA is in competition with mainframe-focused tools from BMC and IBM. They're all...
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