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...s and without completing call is not able to tell his/her location. How can I make 911 call center to know the exact location of my extension. I think its possible by having DID's but I am looking for other options too. I would appreciate your valuable ideas and suggestions. Thanks in advance Shahnawaz

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

Hi Shahnawaz Have you considered how you are going to address location issue for Mobile users calling 911. You should think of SS7 MAP/TCAP to atleast know their Cell ID Regards Sam > Thanks very much everybody who contributed their thoughts. I would try > to get some DID's so that each physical loc...

...ines connecting to PSTN are busy. I get busy tone upon dialing 911 and following message is generated by CLI. app_dial.c:1547 dial_exec_full: Unable to create channel of type 'DAHDI' (cause 34 - Circuit/channel congestion) I would appreciate if somebody help me solve this issue. Regards Shahnawaz

Hi, Is it possible to softhangup a channel based on priority. I mean I want to put some calls in higher priority lets say 100. If all channels are busy and somebody wants to dial an extension with priority higher than 100. How can softhangup drop a line which has priority less than 100? I will appreciate your valuable help. Thanks Smir

...ent 2.If I have analog lines, incoming call can use any channel and out going calls from any extension can use any channel. If somebody dials emergency then that specific extension dials specific channel which has its physical location in Telco database. I would highly appreciate your thoughts. Shahnawaz Mir http://www.aaanetworkx.com

Hi all, I am trying to drop a random channel in asterisk 1.6. The following line in extensions.conf works fine for the first channel exten => 911,4,SoftHangup(DAHDI/1-1) But I need to drop random channel for emergency not any specific one. Can someone show correct syntax for this Thanks smir