Title: rufzurück.de Date: 2008-02-19 Category: consulting Tags: code Slug: rufzurueck For: rufzurück.de Source: kiritanflux.de feed, category ['code'] Full configuration and administration of an Asterisk 1.4 SIP server running on Debian for a SIP-based call-back service, letting mobile phone users subscribe to a flatrate and call into all mobile and landline networks at a flat cost.