FreePBX / Sangoma

A web GUI on top of Asterisk, with the same five default hold tracks.

MakerSangoma Technologies

What callers hearSame five Asterisk / opsound tracks

Confidencemedium

The Simplicity REAL RECORDING Paul Shuler (Macroform)

Cold Day REAL RECORDING Paul Shuler (Macroform)

Tracks as shipped in Asterisk's asterisk-moh-opsound package, licensed CC BY-SA 3.0 "through explicit permission from their authors" (package LICENSE file). Transcoded to MP3, otherwise unmodified.

Listen for

Same music as stock Asterisk
Admins often add a 'none' or custom class, so it varies

FreePBX is the most popular web interface for Asterisk. Sangoma, which also owns Asterisk’s former corporate sponsor Digium, maintains it. FreePBX’s out-of-the-box default music-on-hold category uses the same five opsound.org tracks that ship with Asterisk, stored under /var/lib/asterisk/mohmp3.

So if you can name the track (see the Asterisk page for all five), you can’t tell FreePBX from bare Asterisk by ear alone. Either way, it’s the Asterisk family.

Listen for

Sources