How feasible would it be to build a phone recorder with Asterisk (takes a number of analog phone lines in and records them when there is conversation). Has such a thing already been done or are there aspects of such a thing that would require significant changes to Asterisk to handle? -David Powers
This Functionality is already built in. You would need to use meetme in conjunction with record(). I have set it up, and it is fairly straight forward. Search the mailing list archives, I am certain it is there. Jim On Tue, 2004-09-28 at 09:01, David Powers wrote:> How feasible would it be to build a phone recorder with Asterisk (takes > a number of analog phone lines in and records them when there is > conversation). Has such a thing already been done or are there aspects > of such a thing that would require significant changes to Asterisk to > handle? > > -David Powers > _______________________________________________ > Asterisk-Users mailing list > Asterisk-Users@lists.digium.com > http://lists.digium.com/mailman/listinfo/asterisk-users > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users >
David, We have established several Analog full recording systems utilizing *. If you would like further information, contact me directly. Sincerely, James Coberly - XMC james@xmc.com -----Original Message----- From: asterisk-users-bounces@lists.digium.com [mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of David Powers Sent: Tuesday, September 28, 2004 8:01 AM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: [Asterisk-Users] building a phone recorder How feasible would it be to build a phone recorder with Asterisk (takes a number of analog phone lines in and records them when there is conversation). Has such a thing already been done or are there aspects of such a thing that would require significant changes to Asterisk to handle? -David Powers _______________________________________________ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
David Powers wrote:> How feasible would it be to build a phone recorder with Asterisk > (takes a number of analog phone lines in and records them when there > is conversation). Has such a thing already been done or are there > aspects of such a thing that would require significant changes to > Asterisk to handle? >I assume you're referring to using * as a voice logger to record existing phone lines? The short answer is no. * can only record calls that are passing through itself. The long answer: a) A typical voice logger is attached in parallel to the target phone. The FXO port on the logger can only listen passively without generating any signal. If you just plug * (X101P or TDM FXO) in parallel with the phone, * will pull the line down the moment it kicks in to record. Most like your current call will experience distortion - just like what happens when one person tries to pick up a phone while another is on a parallel phone. b) To minimize interference, the recording port must have a high impedence bridge or 'High-Z bridge'. There're voice cards on the market that have High-Z bridge built-in. These are purpose built for voice logging. At this point of time, there're no * driver for any of these. And, I'm not sure if * will need custom changes to support voice activated recording, etc. Some companies that produce High-Z logging cards: - Voicetronix (http://www.voicetronix.com/vpb8i.htm) - very nice with Linux drivers and open-source logging s/w - Cybertech (http://www.cybertech.nl) - Witness logger uses these cards - Ai-Logix (http://www.ai-logix.com/products.html) - Used by Eyretel (now part of Witness) - Intel/Dialogic (http://www.intel.com/design/network/products/telecom/boards/signaling.htm#ltb) FYI.