Voice-911 calls 1

[drae73]

I have a site here on a LAN with a CCM cluster. It is a campus environment therefore I have 4 different buildings on the campus with the primary building housing the CCM cluster, unity, voice gateways etc... I need to route 911 from the other buildings on the campus but still have it signal from which building it's coming from (not just the primary building).

In other words all the buildings tie to the HQ building via the LAN, but when you dial 911, the call routes out of the HQ routers (Voice gateways). Is there any tips or tricks to configure it so that each building that dials 911 shows the address of the building to telco and not the HQ address/destination.



BLDG1-------------------HQ----------------------BLDG2
BLDG3-------------------HQ--------------------- BLDG4
BLDG5-------------------HQ

Thanks,
-Andrae

 

[VoIPGuyNSC]

Oh boy! Lots of ideas, as we are doing the same thing. Are you using a voice PRI or analog POTS lines? I assume you are using a PRI for a campus that size, so you should determine if your provider has screening tables in place which will determine if you can send out a different calling party number, or ANI if you prefer, though that is not technically correct. If you can, then speak to your provider about having one of your DID numbers associated with a different street address. Then you setup route lists and route patterns to send out that different calling party number when a 911 call is made. The Public Safety Answering point will reference the Master Street Address Guide and get the correct address.

That is just the tip of the iceberg, though. In reality, you will find many headaches along the way.

What we ended up doing was deploying Cisco Emergency Responder inhouse and speaking to our provider about "turning off" screening tables on our PRIs. What we then had to do was utilize a service they offer called 911 PinPoint which allows up to 1000 unique station addresses to be referenced by the PSAP.

John Lever
Telecommunications
Richland School District Two

 

[drae73]

Thanks, I figured it could come down to CER, we utilize that at one of our resorts as well.

Thanks again,

Andrae