Re: [asterisk-users] 911, location

[Shahnawaz Mir]

Thanks very much everybody who contributed their thoughts. I would try  
to get some DID's so that each physical location can be identified by  
911 call Center.

Regards

Shahnawaz

On 2010-01-29, at 2:41 PM, Kevin P. Fleming wrote:

 Leif Neland wrote:

 2: Often callers are answered with an automated message This is 911,
 please hold, just to give pranksters/misdiallers a chance to hang up
 before disturbing the operator. Unless 911 records the incoming  
 call
 right from the start, they will never hear the im-at message. And  
 even
 if they do, they have to know the message is there to seek on the  
 recording.

 In the US at least, calls to PSAPs are recorded from the instant the
 last digit is dialed, before the call is even routed and ringing (on
 wireline networks where this is possible, anyway).

 -- 
 Kevin P. Fleming
 Digium, Inc. | Director of Software Technologies
 445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
 skype: kpfleming | jabber: kpflem...@digium.com
 Check us out at www.digium.com  www.asterisk.org

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[asterisk-users] PSTN to SIP line ratio

[Shahnawaz Mir]

Hi,

I am planning to deploy an Asterisk PBX for 100-200 users. I am not  
sure about PSTN incoming/outgoing line ratio for SIP users. I mean if  
you recall dial up internet the common line ratio is 1:10 (one line  
for 10 users on access server or an E1 for 300 users). Can somebody  
tell me what is the good ratio for incoming and outgoing analogue/ 
digital PSTN lines.

Regards

Smir

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Re: [asterisk-users] PSTN to SIP line ratio

[Shahnawaz Mir]

Thanks Tim,

Your response is really helpful. Its not going to be very busy. I was  
expecting 10:1 but I will start some where between 4-10. Thank you  
very much.

Regards

Shahnawaz Mir

On 15-Oct-09, at 11:11 AM, Tim Nelson wrote:

 - Steve Edwards asterisk@sedwards.com wrote:
 On Thu, 15 Oct 2009, Shahnawaz Mir wrote:

 I am planning to deploy an Asterisk PBX for 100-200 users. I am not
 sure
 about PSTN incoming/outgoing line ratio for SIP users. I mean if you

 recall dial up internet the common line ratio is 1:10 (one line for
 10
 users on access server or an E1 for 300 users). Can somebody tell me

 what is the good ratio for incoming and outgoing analogue/ digital
 PSTN
 lines.

 42[:1]

 (The fact that you ask such a generic question implies you have a  
 high

 probability of failure. You should hire somebody with a bit more clue
 and
 learn from them.)

 -- 
 Thanks in advance,
 - 
 
 Steve Edwards   sedwa...@sedwards.com  Voice: +1-760-468-3867
 PST
 Newline  Fax:
 +1-760-731-3000


 Ignoring unhelpful snobbish remarks from the peanut gallery...

 Your ratio will depend largely on the usage by your users. In a  
 busy contact center where your users/agents will be on calls nearly  
 100% of the time, your ratio will need to be closer to 1:1.  
 However, if the installation is for a school where most of the  
 staff (teachers) are instructing in the classroom or otherwise away  
 from their desks, you can get by with a higher ratio like 4:1.

 As always, you build your system with room for expansion in the  
 event you need additional resource availability. Also, ensure your  
 customer/client understands the limitations of the number  
 simultaneous calls. If you don't tell them and they find out the  
 hard way, you'll be in a world of hurt.

 Tim Nelson
 Systems/Network Support
 Rockbochs Inc.
 (218)727-4332 x105

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