Idle channels DO restart periodically, so this is fine. You are correct in your assumptions that you need to change your span numbering.
 
I believe it's because your telco is starting at 0 instead of 1.
 
I had this problem also, and had to change mine to span=1,1,0,ccs,hdb3,crc4
 
Search the list and the wiki... the answer is in there somewhere (that's where I found it).
 
----- Original Message -----
Sent: Thursday, April 14, 2005 2:14 PM
Subject: [Asterisk-Users] Channel 0 on Zap ???