Hello David, Thanks so much for your message!
Please check my comments inline below... David Backeberg wrote: > On Sun, Feb 7, 2010 at 9:54 PM, Leo Burd <l...@media.mit.edu> wrote: > >> Hello there, >> >> I'm trying to figure out how to run a PHP script on a remote machine and >> still have access to the audio stream associated with the call. >> >> Ideally, I'd love to play/record audio files directly from/to the remote >> server without having to copy them back and forth to the Asterisk >> server. What is the best way to do this? >> >> Is it possible to combine EAGI with FastAGI in PHP? >> > > You don't specify how often / what proportion of the recordings need > to be on a remote machine versus on the asterisk server. So you have > two main things going on: > > 1) recordings, with a side order of distributing those to another machine > 2) remote shell scripting > > First, the recordings can be done directly on a channel where the call > is taking place. If this is one call, that's not so bad, but there get > to be I/O contention issues when you try to record 'a lot' of calls > simultaneously. Some people endorse working around that by writing > recordings to a ramdisk, and then occasionally flushing those off to a > real hard disk. > What would be the "asterisk way" of recording part of the call from a remote server? I'm not sure I can do that (the remote connection) with EAGI, can I? > You may prefer an alternate approach, which is that taken by > commercial recording solutions. Oreka (which can be grabbed from > sourceforge), and pretty much every commercial voip recording solution > I've investigated, works by having you use libpcap (used in > Ethereal/Wireshark) to watch ethernet device(s) where voip calls are > taking place, grab the SIP headers that set up the RTP stream, and > then write those recordings to disk on a dedicated recordings server. > This requires explicit ethernet support by doing things like port > mirroring, or using an old-school hub, etc. This has an advantage for > you of providing a way to do recording directly on a machine that is > NOT the asterisk server. No copying required as the recording is > already where you want it. > > Second, the remote shell isn't so hard. ssh with keys, problem solved. > You can do that directly from the asterisk dialplan using the System() > command. This let's you tie the remote shell directly to a given call, > where you can tune arguments accordingly. > Do you know of any examples that use ssh from inside Asterisk calls? How much control do the ssh processes have over the call, if any? Is that comparable to Fast_AGI? Or EAGI? > Of course, you can also do #1 with scripting and remote shell, or > rsync with keys. If you don't need 'a lot' of simultaneous channels > recorded, this may be more straightforward. You only have to learn > asterisk, rather than asterisk and Oreka. > I'm intrigued about the remote shell idea... please let me know if you have additional information about it, ok? Thanks once again, Leo -- _____________________________________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users