[cisco-voip] School Building VoIP 911

[Lelio Fulgenzi]

buy one of those EVM cards - it has a red phone option so at least one phone will work on campus. 

http://cisco.com/en/US/prod/collateral/modules/ps3115/product_data_sheet0900aecd8016c1c6_ps5855_Products_Data_Sheet.html 

EVM-HD-8FXS/DID 


The Cisco High-Density Extension Module for voice and fax has 8 FXS and DID ports. Individual ports on the baseboard module can be configured for FXS or DID signaling. Adjacent ports should share the same configuration to avoid impedance setting conflicts. A change to the impedance setting for one port, changes the setting on the adjacent port. Paired ports are: 0 and 1; 2 and 3; 4 and 5; 6 and 7. 

An on-premises FXS interface connects directly to a standard telephone, fax machine, or similar device and supplies ring, voltage, and dial tone. Signaling support available in FXS mode includes loop-start and ground-start. DID trunks from the central office can be connected to the Cisco High-Density Extension Module baseboard for off-premises connections. Signaling support available in DID mode includes immediate, delay dial, and wink start. 

Users plug in up to two expansion modules in any combination to increase the voice and fax capacity of the Cisco High-Density Extension Module baseboard. 









EM-HDA-6FXO 

This 6-port FXO voice and fax expansion module provides off-premises connection to the central office. This module supports FXO power failover. If power to the router fails, this feature helps enable a direct metallic path between an FXO port and a special "red". It also supports analog Centralized Automated Message Accounting (CAMA) on any port. telephone to provide a direct line to the PSTN. 

--- 
Lelio Fulgenzi, B.A. 
Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1 
(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN) 
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
Cooking with unix is easy. You just sed it and forget it. 
- LFJ (with apologies to Mr. Popeil) 


----- Original Message ----- 
From: "Erik Potteiger" <epotteiger at findlaycityschools.org> 
To: "cisco-voip at puck.nether.net" <cisco-voip at puck.nether.net> 
Sent: Tuesday, June 8, 2010 2:50:12 PM GMT -05:00 US/Canada Eastern 
Subject: [cisco-voip] School Building VoIP 911 




Hello, 



I am thinking about installing a VG224 for about 15 lines at a public building. I have UCM 6.1 and a Cisco 2801 SRST with 2 FXO ports both FXO ports are connected to POTS lines and all 911 calls are routed out the POTS lines. I also have a fire alarm that will be connected to 2 POTS lines. All components are on a UPS that can handle a power outage of 10 minutes. After 10 minutes all phones would be dead except for the fire alarm system. I am concerned about 911 during a power outage. If all the phones are dead in a public building during a power outage is this illegal? I am not concerned about safety almost everyone in the building carries a cell phone. I am thinking keeping one POTS line at the front desk. Any suggestions or information about 911 laws. 



Thank you, 

Erik 


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