I have Asterisk 1.4.33 in between a Merlin Legend and the outside world.
Phone Co. <–PRI–> Asterisk <–PRI–> Merlin Legend
I just switched to DAHDI from Zaptel
When a call transfers from our incoming PRI to Asterisk to our Merlin Legend (via PRI) the call drops when it is transferred from the ringing phone to voicemail (on the Legend). I get the message:
Channel 0/23, span 2 got hangup request, cause 16
I saw an article at g00t.com/?=p=73 which says to change “transfer=yes” to “transfer=no” in:
/etc/asterisk/chan_dahdi.conf.
This actually made it worse! I had no problems when using Zaptel. DAHDI is killing me! Any ideas?