Asterisk setup soho 24

Small Office SOHO 24 Setup: Example from real life

Equipment

• 1 Full PRI (23+1) inbound and outbound shared with 20 DID, from TDS
• 1 Digium Wildcard TE110P
• Travla C137 mini-itx case with dual riser card (dual not really needed in this configuration)
• VIA Epia MII12000 (1.2 ghz) mini-itx motherboard (USB disabled to free up IRQs)
• 512mb
• 120gb
• Fedora Core 4
• 24 Polycom IP 500 phones with SIP version 1.4.1

(Note: This system was originally configured with 2 x TDM400P (8 lines) cards and pots lines, but TDS was unable to deliver all services promised without going to a full PRI. The TDM400P’s worked fine, too, after a faulty one was replaced n/c by Digium.)

Features Used

• Voicemail
• Used voicemail functions to create a customized dictation system
• Music on hold
• Meeting rooms
• Caller ID number (with name provided from internal database)
• AGI for some limited remote text/data access

Performance

• Each active call takes about 1% of CPU time according to top
• Have tested with as many as 20 lines active with no performance issues
• Up to 12 people in meeting rooms with no performance issues

Issues

• Significant echo problem (on a PRI?) was fixed by reducing volume in zapata.conf: txgain=-7
• Auto-configuring Polycom’s took some work because of extensive options
• Had to write perl scripts for cidname loading and polycom configuration

Likes

• The Polycom 500’s are great, after you get to a newer release of the code (1.4.1 has been good)
• The Digium card has been great
• Extremely flexible