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Vonage Your treatise is good.
Not all PBX's are created equal. The Avaya Multivantage
Your treatise is good.
Not all PBX's are created equal. The Avaya Multivantage and Communications Manager series allows remote SoftPhone users to specify a local number (say their home number) as the E911 number to send. Most teleworkers would be able to use that. In addition, this PBX allows for a local station or attendant to be notified if anyone in the switch dials 911 so that they can assist in location if necessary.
When the softphone user dials 911, the specified ANI is sent to the PSAP to access correct address location information. In addition, there are many third-party add-ons for most PBX's to handle the problem.
The issue encountered is that the call is still going to route to the PSAP for the PBX's wire center unless the tandem office is intelligent and uses the provided ANI (vs. the main number) to route the call. The number and name may come up just fine but the call will be in the wrong 911 center. The call is at least answered and can be transferred to the correct 911 center by the answering operator, provided the destination PSAP is in the same region.
Most companies with a large central PBX are able to de-centralize the trunking so that if, for example, the "brain" of the switch is in Atlanta, and you have remote cabinets off the switch in Chicago, New York and LA, local trunking is set up in those cities and selective digit analysis and routing is deployed to route 911 calls over local trunks in the distant cities. This is the only way you can currently insure that a large distributed network can route calls correctly.
Until the Voip companies figure out how to tandem calls into the correct destination 911 center or at least hit a major tandem switch for the region, little can be done.
Read The Full Thread: How VOIP E911 might work
• In another thread:
The technical issues have already been addressed
• However many/most ISPs use dynamic IP address assignments for their residential
• No, the plan I outlined accounts for both DHCP and NAT. When an ISP assigns a dynamic
kenn10 posted "Your treatise is good.
Not all PBX's are created equal. The Avaya Multivantage" on 03/03/2005 |
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