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At our main facility I can pickup any phone and dial 911 and the CTX670 connects to the PRI trunk assigned to that phone and sends the dialed digits through to the CO. At one of my remotes the CTX100 doesn't do this. It acts like we Dialed '9' to get out and then '11'. What option am I missing?
Thanks!
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There is a 911 timer that is normally set to 5 seconds. If you dial LCR 9 + 911, then your call is instant. If you just dial 911, then after 5 seconds it will dial out. If this doesn't dial 911 after 5 seconds, then maybe e911 is disabled in the settings.
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Thanks for the reply.
In program 105 "System Parameters", 08 "E911 Service" is set to Enable. Is there another setting that would supersede this setting?
In program 104 "System Timers", 13 "9+11 Judgement Timer" is set to 3. Is this the timer you are referring too?
Thanks Again!
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Joined: Jun 2005
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Thanks for the reply.
In program 105 "System Parameters", 08 "E911 Service" is set to Enable. Is there another setting that would supersede this setting?
In program 104 "System Timers", 13 "9+11 Judgement Timer" is set to 3. Is this the timer you are referring to?
Thanks Again! Those were the settings that I was thinking I read your question again. You did not mention what kind of lines they have at the remote site. I was thinking that it was a PRI like the main site. Could they be Centrex analog?
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They are on a PRI. The difference is the CTX100 at the remote site and the CTX670 at our main site.
I was looking at the Destination Restrict table view and it looks like there is even an exception for 911 in there.
It seems like the system should have an option to bypass LCR and throw the numbers out to the PRI and that is what the Timer is for, but it is like it isn't working.
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E911 ignores LCR. It will even bypass local line keys and will only use PRG 550 for selecting a line for 911. That is where the E911 services and judgment timer fall into place. You have to set the OLG in PRG 550 in order to select a trunk group to route 911 calls
Is the remote site sharing the same PRI as the main site? That will add a lot of complexity to the setup. If this is how you have it set up, then the main location may not apply E911 settings to the calls across the Stratanet net. The system may assume that when it receives 9 across the network, it should uses LCR. The judgment timer in the main site would not apply in this situation. The remote site already did its job by sending 911 to the main site.
This is something that I have never done. I always had remote PBX have their own local lines.
The other issue with using 911 across the Stranet is how the dispatcher is able to respond to the phone number. Your provider will have to know that calls from the remote site to the 911 dispatcher are physically located at another location.
I have done this with remote IP phones connected to a Toshiba. I worked with the ITSP to designate a specific phone number for the remote site (IP phones). When they dial 911, their designated phone number gets pushed to the carrier. Based on that phone number, they can route to dispatch properly.
If this was my setup, I would have ordered 1 POTS line to use for local 911 service or connected a fax line.
To avoid any additional potential issues, I am going to drop off this thread. 911 is important to get right. As I am unable to properly diagnose and test the setup, I can't offer any more advice. Any other questions can be asked by PM .
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E911 ignores LCR. It will even bypass local line keys and will only use PRG 550 for selecting a line for 911. That is where the E911 services and judgment timer fall into place. You have to set the OLG in PRG 550 in order to select a trunk group to route 911 calls 550 points Emergency Call Group 1 to "01 OLG1" to 1 none of the other OLG options have data. Is the remote site sharing the same PRI as the main site? That will add a lot of complexity to the setup. If this is how you have it set up, then the main location may not apply E911 settings to the calls across the Stratanet net. The system may assume that when it receives 9 across the network, it should uses LCR. The judgment timer in the main site would not apply in this situation. The remote site already did its job by sending 911 to the main site. This is something that I have never done. I always had remote PBX have their own local lines. This is not how it is supposed to be setup. There has always been a local PRI connection at this site. AFAIK the 911 hasn't worked. It does work if you dial 9+911 At one time we had a higher volume of calls on this WAN with a lower bandwidth. At that time we used a QSIG with a drop and replace to carve out 6 channels for Stratanet (As I recall). 7 to 10 years ago we increased the bandwidth of the connection and removed that functionality. Now it is purely Stratanet over Ethernet at least as far as the CTX is concerned. To avoid any additional potential issues, I am going to drop off this thread. 911 is important to get right. As I am unable to properly diagnose and test the setup, I can't offer any more advice. Any other questions can be asked by PM . No problem. Thanks for your help and I agree it is important to get right.
Last edited by jc2it; 01/03/24 10:29 AM.
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I suspect that with 9+911 the PBX at the main site can route the call. Still have the issue of the address presented to the 911 dispatcher may be incorrect.
It sounds like who ever removed the local PRI and routed all calls over QSIG never considered 911. It probably never worked correctly after removing the local trunk.
There is a law that requires a PBX to route calls when people dial 911 without a leading line access code (9+911). I am not 100 sure if this is only required for new systems installed, but it is still a good practice.
I sent a PM with an option.
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