AsteriskNOW is a GUI on top of Asterisk; it does not change the ability of the system to handle call load.
I thought the AsteriskNOW GUI was now a FreePBX clone. If so, every call now uses a perl script to make the call. This is considerably more overhead than a dial-plan written in native asterisk code.
For the 20,000 calls, I would use Opensips for the SIP and Asterisk for audio playback, transcoding, voicemail, fun.
Adrian -- _____________________________________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
