Muti-site PBX network using ISDN BRI
We have a banking client that desired an enterprise telephone system. Their interest was..
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4 digit dialing plan for their operations center/corporate office and each bank branch. |
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Low cost "enterprise level" utilities. |
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Same phone on each desk. |
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Reliability. |
Other vendors proposed..
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Installing ISDN PRI into the main operations center hub. |
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Installing point-to-point (p-p) T1's from this hub into each branch office. |
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Installing remote slave units at each branch. |
These solutions had these serious flaws:
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T1 failure cuts off branch from the network. Single point of failure. |
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Centralized ISDN PRI is another single point of failure. |
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Low cost centralized ISDN PRI + high cost p-p T1's resulted in $6000/mo telecom utilities. |
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Network design results in high equipment price tag. |
We recommended and installed at each location:
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Redundant ISDN BRI dial tone circuits with direct inward dialing and Caller ID name. |
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Fully independent ISDN PBX. |
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ISDN BRI based 4 digit dialing plan networking. |
Benefits to this design are...
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No centralized utilities, each site has redundant ISDN BRI voice circuits. |
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Networking does not rely on single T1 that can fail, networking is via multiple BRI circuits. |
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ISDN BRI serves double duty of dial tone and networking utilities. Telecom utilities are under $1500/mo. |
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Eliminating T1 network equipment reduced equipment cost by 33 %. |
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NO SINGLE POINT OF FAILURE IN DIAL TONE OR NETWORK. |