But wait, it gets more interesting, Jabber has an open architecture now embodied in the form of Internet standards such as XMPP (RFC 3920 and RFC 3921), the very standards and code base upon which Google built its GoogleTalk! As a matter of fact, you can reach the author on via Google Talk because PBnJ Solutions' Jabber server is federated with Google's servers.

The question remains then, does this make me an official of the Military Industrial Complex? I think not, but it does mean that PBnJ Solutions is familiar with, and can help you implement, military grade solutions to your business problems. Need a VoIP solution? Call us and we can help get your Asterisk server up and running; IM us and we'll move you off that myriad of adware riddled instant messaging services that turn your firewall into a swiss-cheese to a rock-solid Jabber server. We'll be glad to communicate with you in any way you'd like.

• Ringtone sound files
  These files must be called ring1.bin, ring2.bin and ring3.bin respectively and must be downloaded to the phone. This typically entails placing them into the /tftpboot folder on your TFTP server alongside the configuration files for the phones.
• Phone Parameters
  Phones associate each of the three ringtones with a specific caller-id value. These caller-id values are controlled with parameters P105; P106 and P107 respectively. Pick appropriate caller-id values for each of the ringtones and move to the final step:
• Asterisk Dial Plan
  In the appropriate place in the Asterisk dialplan then, insert a line as follows:

  exten => s,n,SIPAddHeader(Alert-Info:\;info=Special)
  

  Where "Special" corresponds to the parameter value you chose to associate with the ringtone you want to use for that call.

$FG_TABLE_CLAUSE .= " 1 = 1";

$FG_TABLE_CLAUSE .= " AND NOT ((dst = 's') AND (disposition = 'NO ANSWER'))";

SAN and NAS devices

Grandstream phones can be configured individually by assigning them an IP address and then browsing to their configuration web-pages. However, any sizable deployment will quickly outgrow that approach. Instead, system administrators will likely opt to have the phones download a tailored configuration based on the phones' MAC addresses. These configuration files can be generated using Grandstream's template and configuration tool. However, assuming that each phone is in some way unique, this approach still requires that the configuration tool be run once for each phone; still labor intensive. Thanks to a description of the configuration file's layout on the VoIP Info website, PBnJ Solutions was able to build a small Perl utility to generate compatible configuration files.