[asterisk-users] 1.6.0.9: Now "Unable to create ... 'DAHDI'"

[sean darcy]

Still trying to upgrade to 1.6.0.9 for 1.4.

It worked - it worked all day yesterday, but this morning:

      -- Executing [646xxxyyyy at longdistance:1] 
Answer("SIP/172-08276a60", "") in new stack
..........
     -- Executing [646xxxyyy at longdistance:6] Dial("SIP/172-08276a60", 
""DAHDI/g2"/1646xxxyyyy") in new stack
May 27 09:56:57] WARNING[16589]: app_dial.c:1468 dial_exec_full: Unable 
to create channel of type 'DAHDI' (cause 0 - Unknown)
   == Everyone is busy/congested at this time (1:0/0/1)

dahdi seems up. I restarted. Rebooted. Now I've reverted to 1.4.

CLI> dahdi show channels
    Chan Extension  Context         Language   MOH Interpret 
Blocked    State
  pseudo            from-pstn       en         default 
        In Service
       1            from-pstn       en         default 
        In Service
       2            from-pstn       en         default 
        In Service
       3            from-pstn       en         default 
        In Service
       4            from-pstn       en         default 
        In Service
       5            from-pstn       en         default 
        In Service
       6            from-pstn       en         default 
        In Service
       7            from-pstn       en         default 
        In Service
       8            from-pstn       en         default 
        In Service

  dahdi show status
Description                              Alarms  IRQ    bpviol CRC4 
Fra Codi Options  LBO
Wildcard TE120P Card 0                   OK      1      0      0 
ESF B8ZS YEL      0 db (CSU)/0-133 feet (DSX-1)

CLI> dahdi show version
DAHDI Version: 2.1.0.4 Echo Canceller: MG2

What should I try next? Any help appreciated.

sean