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| Tech Update Networking Upgrades |
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Pack up your PBX--VoIP is here
Bandwidth and flexibility
By Barbara Krasnoff
August 12, 2002
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An IP PBX may demand increased bandwidth, but it is also far more flexible than current circuit-switched PBX systems. For example, while an overloaded circuit-switched PBX system will invariably require the purchase of new equipment, an existing IP PBX can piggyback on adjoining T1 or T3 lines to take up the slack.
In addition, the installation of a solid Quality of Service system, which prioritizes the packets passing through a network, can handle performance problems due to increased network traffic, although it cannot make up for insufficient bandwidth. If necessary, many enterprise VoIP gateways can fall back automatically to existing public switched telephone network (PSTN) connections, instead of routing calls through the Internet, when the system is temporarily stressed.
The greatest return on investment from VoIP is the most difficult to quantify: Increased worker productivity through a variety of new applications and services that are only now becoming available on VoIP systems.
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An IP PBX system offers consolidation of your data/voice/video, providing a means for users to assert more control over their use of phone features using a desktop GUI. Although some of these applications are already in place on circuit-switched PBX systems (albeit in a less friendly format), they can only be used with a dedicated call center, whereas VoIP systems allow any user to access these features. Some VoIP systems, for example, let employees log on to the system anywhere on the network, and immediately route incoming calls to their station, along with appropriate data. Unified messaging combines and tracks e-mail and voicemail on the same Windows screen, allowing users to keep call journals, record/cache calls, identify callers, easily set up scripts for filtering and call routing.
So while Keneipp advises enterprises not to do a forklift upgrade, gut their old system and put in a new one, he does suggest they investigate VoIP if they are installing telecom gear at a new site or have outgrown their old PBX. Enterprises that aren't ready to switch yet, but are planning network upgrades, should keep in mind that the odds are that their networks will need to accommodate an IP PBX sometime in the future.
Are you ready to pack up your circuit-switched PBX? TalkBack below or e-mail us with your thoughts.
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