In trying to troubleshoot the Delay after Answer problem I had before
(which seems to be fixed), I have somehow created a new problem:

Outgoing calls are now failing with the following message:

[Jun 7 13:28:09] WARNING[9247][C-00000000]: app_dial.c:2429
dial_exec_full: Unable to create channel of type ‘DAHDI’ (cause 0 – Unknown)

But I DO have working dahdi as incoming calls are working correctly.

CLI> dahdi show channels
Chan Extension Context Language MOH Interpret
Blocked In Service Description
pseudo default default Yes
3 mainmenu default Yes
4 mainmenu default Yes CLI> dahdi show status Description Alarms IRQ bpviol CRC Fra Codi Options LBO
Wildcard AEX410 OK 0 0 0 CAS
Unk 0 db (CSU)/0-133 feet (DSX-1)
CLI> dahdi show channel 3
Channel: 3
Description:
File Descriptor: 14
Span: 1
Extension:
Dialing: no Context: mainmenu Caller ID:
Calling TON: 0
Caller ID name:
Mailbox: none Destroy: 0
InAlarm: 0
Signalling Type: FXS Kewlstart Radio: 0
Owner:
Real:
Callwait:
Threeway:
Confno: -1
Propagated Conference: -1
Real in conference: 0
DSP: no Busy Detection: yes
Busy Count: 8
Busy Pattern: 0,0,0,0
TDD: no Relax DTMF: yes Dialing/CallwaitCAS: 0/0
Default law: ulaw Fax Handled: no Pulse phone: no HW Gains (RX/TX): Disabled/Disabled SW Gains (RX/TX): 0.00/0.00
Dynamic Range Compression (RX/TX): 0.00/0.00
DND: no Echo Cancellation:
128 taps
(unless TDM bridged) currently OFF
Wait for dialtone: 0ms Actual Confinfo: Num/0, Mode/0x0000
Actual Confmute: No Hookstate (FXS only): Offhook CLI>

dahdi show channel 4
Channel: 4
Description:
File Descriptor: 15
Span: 1
Extension:
Dialing: no Context: mainmenu Caller ID:
Calling TON: 0
Caller ID name:
Mailbox: none Destroy: 0
InAlarm: 0
Signalling Type: FXS Kewlstart Radio: 0
Owner:
Real:
Callwait:
Threeway:
Confno: -1
Propagated Conference: -1
Real in conference: 0
DSP: no Busy Detection: yes
Busy Count: 8
Busy Pattern: 0,0,0,0
TDD: no Relax DTMF: yes Dialing/CallwaitCAS: 0/0
Default law: ulaw Fax Handled: no Pulse phone: no HW Gains (RX/TX): Disabled/Disabled SW Gains (RX/TX): 0.00/0.00
Dynamic Range Compression (RX/TX): 0.00/0.00
DND: no Echo Cancellation:
128 taps
(unless TDM bridged) currently OFF
Wait for dialtone: 0ms Actual Confinfo: Num/0, Mode/0x0000
Actual Confmute: No Hookstate (FXS only): Offhook
**

The Hookstates always say offhook for some reason, though I’m not sure why.

My setup:

* Server running Asterisk 13.9.1, Dahdi 2.11.1 w/ OSLEC
* Server is CentOS 7
* Quad core CPU with 16GB Ram
* 2 Snom 300 phones.
* NO NAT. Server and phone are on the same subnet with only a gigabit
switch between them.
* Digium AEX410P analog card with 2 incoming analog PSTN lines

Any ideas?