asterisk users - Apr 2006 - PRI Issue: D-Channel woes

Hi,

I am about to pull my hair out after trying to get our PRI up and working.
 We are switching from a Cisco gateway to an Asterisk box which provides
the 23 phone lines for our office.  So, because the Cisco gateway is
working I can assume  I have all the settings right (b8zs, esf, dms100,
etc) and the PRI is live (because we are switching over).  When dialing
from PSTN, I get busy signal. When dialing to the PSTN from the asterisk
box I get the following error:

== Primary D-Channel on span 1 down
Apr 30 23:29:32 WARNING[12830]: chan_zap.c:2290 pri_find_dchan: No
D-channels available!  Using Primary channel 24 as D-channel anyway!
    -- Hungup 'Zap/1-1'
  == Everyone is busy/congested at this time (1:0/0/1)

Below is the relevant information, if anyone could assist me at all it
would be greatly appreciated.

Thanks,

Terence






# lsmod

Module                  Size  Used by
wcusb                  21760  0
wctdm                  36512  0
wcfxo                  13408  0
wcte11xp               24896  0
wct1xxp                16544  0
wct4xxp                97664  24
tor2                   89856  0
zaptel                188452  59
wcusb,wctdm,wcfxo,wcte11xp,wct1xxp,wct4xxp,tor2
hdlc                   23552  0
lapb                   13312  1 hdlc
syncppp                14076  1 hdlc
ipv6                  221696  12
ip_vs                  71392  0
joydev                  8864  0
evdev                   8800  0
crc_ccitt               1952  1 zaptel
mousedev               10496  0
psmouse                32356  0
serio_raw               6468  0
i2c_i801                7916  0
shpchp                 39712  0
pci_hotplug            24756  1 shpchp
i2c_core               19280  1 i2c_i801
rtc                    11316  0
pcspkr                  1668  0
ext3                  117768  2
jbd                    48404  1 ext3
mbcache                 8484  1 ext3
ide_generic             1120  0 [permanent]
ide_cd                 36484  0
cdrom                  33280  1 ide_cd
sd_mod                 17136  4
piix                    8964  0 [permanent]
ata_piix                8964  3
libata                 51020  1 ata_piix
scsi_mod              125736  2 sd_mod,libata
ehci_hcd               28904  0
tg3                    89540  0
generic                 4260  0 [permanent]
ide_core              112800  4 ide_generic,ide_cd,piix,generic
uhci_hcd               28016  0
usbcore               113284  4 wcusb,ehci_hcd,uhci_hcd
thermal                13416  0
processor              22912  1 thermal
fan                     4580  0


# cat /proc/interrupts

           CPU0
  0:    3517028    IO-APIC-edge  timer
  1:         12    IO-APIC-edge  i8042
  4:          5    IO-APIC-edge  serial
  8:          0    IO-APIC-edge  rtc
  9:          1   IO-APIC-level  acpi
 14:         64    IO-APIC-edge  ide0
 50:      14624   IO-APIC-level  uhci_hcd:usb1, libata, ehci_hcd:usb4
 66:    3479230   IO-APIC-level  wct4xxp
169:      37440   IO-APIC-level  eth0
177:          0   IO-APIC-level  uhci_hcd:usb2
185:          0   IO-APIC-level  uhci_hcd:usb3
NMI:          0
LOC:    3517023
ERR:          0
MIS:          0


# cat /proc/zaptel/1

Span 1: TE4/0/1 "T4XXP (PCI) Card 0 Span 1" B8ZS/ESF ClockSource

           1 TE4/0/1/1 Clear (In use)
           2 TE4/0/1/2 Clear (In use)
           3 TE4/0/1/3 Clear (In use)
           4 TE4/0/1/4 Clear (In use)
           5 TE4/0/1/5 Clear (In use)
           6 TE4/0/1/6 Clear (In use)
           7 TE4/0/1/7 Clear (In use)
           8 TE4/0/1/8 Clear (In use)
           9 TE4/0/1/9 Clear (In use)
          10 TE4/0/1/10 Clear (In use)
          11 TE4/0/1/11 Clear (In use)
          12 TE4/0/1/12 Clear (In use)
          13 TE4/0/1/13 Clear (In use)
          14 TE4/0/1/14 Clear (In use)
          15 TE4/0/1/15 Clear (In use)
          16 TE4/0/1/16 Clear (In use)
          17 TE4/0/1/17 Clear (In use)
          18 TE4/0/1/18 Clear (In use)
          19 TE4/0/1/19 Clear (In use)
          20 TE4/0/1/20 Clear (In use)
          21 TE4/0/1/21 Clear (In use)
          22 TE4/0/1/22 Clear (In use)
          23 TE4/0/1/23 Clear (In use)
          24 TE4/0/1/24 HDLCFCS (In use)


# ztcfg -vvvvvvvv

Zaptel Configuration
=====================
SPAN 1: ESF/B8ZS Build-out: 0 db (CSU)/0-133 feet (DSX-1)

Channel map:

Channel 01: Clear channel (Default) (Slaves: 01)
Channel 02: Clear channel (Default) (Slaves: 02)
Channel 03: Clear channel (Default) (Slaves: 03)
Channel 04: Clear channel (Default) (Slaves: 04)
Channel 05: Clear channel (Default) (Slaves: 05)
Channel 06: Clear channel (Default) (Slaves: 06)
Channel 07: Clear channel (Default) (Slaves: 07)
Channel 08: Clear channel (Default) (Slaves: 08)
Channel 09: Clear channel (Default) (Slaves: 09)
Channel 10: Clear channel (Default) (Slaves: 10)
Channel 11: Clear channel (Default) (Slaves: 11)
Channel 12: Clear channel (Default) (Slaves: 12)
Channel 13: Clear channel (Default) (Slaves: 13)
Channel 14: Clear channel (Default) (Slaves: 14)
Channel 15: Clear channel (Default) (Slaves: 15)
Channel 16: Clear channel (Default) (Slaves: 16)
Channel 17: Clear channel (Default) (Slaves: 17)
Channel 18: Clear channel (Default) (Slaves: 18)
Channel 19: Clear channel (Default) (Slaves: 19)
Channel 20: Clear channel (Default) (Slaves: 20)
Channel 21: Clear channel (Default) (Slaves: 21)
Channel 22: Clear channel (Default) (Slaves: 22)
Channel 23: Clear channel (Default) (Slaves: 23)
Channel 24: D-channel (Default) (Slaves: 24)

24 channels configured.

# cat /etc/zaptel.conf

span=1,0,0,esf,b8zs
bchan=1-23
dchan=24
loadzone=us
defaultzone=us


# cat /etc/asterisk/zapata.conf

[trunkgroups]

[channels]
context=pri_inbound
switchtype=dms100
signalling=pri_cpe
group=1
channel => 1-23



*CLI> zap show status
Description                              Alarms     IRQ        bpviol    
CRC4
T4XXP (PCI) Card 0 Span 1                OK         0          0          0
T4XXP (PCI) Card 0 Span 2                UNCONFIGUR 0          0          0
T4XXP (PCI) Card 0 Span 3                UNCONFIGUR 0          0          0
T4XXP (PCI) Card 0 Span 4                UNCONFIGUR 0          0          0



*CLI> pri show span 1
Primary D-channel: 24
Status: Provisioned, Down, Active
Switchtype: Nortel DMS100
Type: CPE
Window Length: 0/7
Sentrej: 0
SolicitFbit: 0
Retrans: 0
Busy: 0
Overlap Dial: 0
T200 Timer: 1000
T203 Timer: 10000
T305 Timer: 30000
T308 Timer: 4000
T313 Timer: 4000
N200 Counter: 3



*CLI> pri intense debug span 1
> Unnumbered frame:
> SAPI: 00  C/R: 0 EA: 0
>  TEI: 000        EA: 1
>   M3: 3   P/F: 1 M2: 3 11: 3  [ SABME (set asynchronous balanced mode
extended) ]
> 0 bytes of data
Sending Set Asynchronous Balanced Mode Extended
> [ 00 01 7f ]
> Unnumbered frame:
> SAPI: 00  C/R: 0 EA: 0
>  TEI: 000        EA: 1
>   M3: 3   P/F: 1 M2: 3 11: 3  [ SABME (set asynchronous balanced mode
extended) ]
> 0 bytes of data
Sending Set Asynchronous Balanced Mode Extended
> [ 00 01 7f ]
> Unnumbered frame:
> SAPI: 00  C/R: 0 EA: 0
>  TEI: 000        EA: 1
>   M3: 3   P/F: 1 M2: 3 11: 3  [ SABME (set asynchronous balanced mode
extended) ]
> 0 bytes of data
Sending Set Asynchronous Balanced Mode Extended
> [ 00 01 7f ]
> Unnumbered frame:
> SAPI: 00  C/R: 0 EA: 0
>  TEI: 000        EA: 1
>   M3: 3   P/F: 1 M2: 3 11: 3  [ SABME (set asynchronous balanced mode
extended) ]
> 0 bytes of data
Sending Set Asynchronous Balanced Mode Extended

and on, and on, and on




# cat /var/log/messages

Apr 30 23:52:58 asterisk kernel: Zaptel Version: 1.2.5 Echo Canceller: KB1
Apr 30 23:52:59 asterisk kernel: Registered Tormenta2 PCI
Apr 30 23:52:59 asterisk kernel: ACPI: PCI Interrupt 0000:03:02.0[A] ->
GSI 35 (level, low) -> IRQ 66
Apr 30 23:52:59 asterisk kernel: Found TE4XXP at base address fe9ffc00,
remapped to f883cc00
Apr 30 23:52:59 asterisk kernel: TE4XXP version c01a0164, burst OFF, slip
debug: OFF
Apr 30 23:52:59 asterisk kernel: FALC version: 00000005, Board ID: 00
Apr 30 23:52:59 asterisk kernel: Reg 0: 0x3123a400
Apr 30 23:52:59 asterisk kernel: Reg 1: 0x3123a000
Apr 30 23:52:59 asterisk kernel: Reg 2: 0xffffffff
Apr 30 23:52:59 asterisk kernel: Reg 3: 0x00000000
Apr 30 23:52:59 asterisk kernel: Reg 4: 0x0000ff01
Apr 30 23:52:59 asterisk kernel: Reg 5: 0x00000000
Apr 30 23:52:59 asterisk kernel: Reg 6: 0xc01a0164
Apr 30 23:52:59 asterisk kernel: Reg 7: 0x00001000
Apr 30 23:52:59 asterisk kernel: Reg 8: 0x00000000
Apr 30 23:52:59 asterisk kernel: Reg 9: 0x00ff00ff
Apr 30 23:52:59 asterisk kernel: Reg 10: 0x00000000
Apr 30 23:52:59 asterisk kernel: TE4XXP: Launching card: 0
Apr 30 23:52:59 asterisk kernel: TE4XXP: Setting up global serial parameters
Apr 30 23:52:59 asterisk kernel: Found a Wildcard: Wildcard TE410P (2nd Gen)
Apr 30 23:52:59 asterisk kernel: About to enter spanconfig!
Apr 30 23:52:59 asterisk kernel: Done with spanconfig!
Apr 30 23:52:59 asterisk kernel: Registered tone zone 0 (United States /
North America)
Apr 30 23:52:59 asterisk kernel: About to enter startup!
Apr 30 23:52:59 asterisk kernel: TE4XXP: Span 1 configured for ESF/B8ZS
Apr 30 23:52:59 asterisk kernel: wct4xxp: Setting yellow alarm on span 1
Apr 30 23:52:59 asterisk kernel: 2G: Got interrupt, status = 0000ff0c, GIS
= 0080
Apr 30 23:52:59 asterisk kernel: 2G: Got interrupt, status = 0000ff0a, GIS
= 0080
Apr 30 23:52:59 asterisk kernel: 2G: Got interrupt, status = 0000ff0a, GIS
= 0080
Apr 30 23:52:59 asterisk kernel: VPM: Span 0 U-law mode
Apr 30 23:52:59 asterisk kernel: 2G: Got interrupt, status = 0000ff0a, GIS
= 0080
Apr 30 23:52:59 asterisk kernel: 2G: Got interrupt, status = 0000ff0a, GIS
= 0080
Apr 30 23:52:59 asterisk kernel: VPM: DTMF threshold set to 1000
Apr 30 23:52:59 asterisk kernel: 2G: Got interrupt, status = 0000ff0a, GIS
= 0080
Apr 30 23:52:59 asterisk kernel: VPM: Span 1 U-law mode
Apr 30 23:52:59 asterisk kernel: 2G: Got interrupt, status = 0000ff0a, GIS
= 0080
Apr 30 23:52:59 asterisk kernel: 2G: Got interrupt, status = 0000ff0a, GIS
= 0080
Apr 30 23:52:59 asterisk kernel: VPM: DTMF threshold set to 1000
Apr 30 23:52:59 asterisk kernel: 2G: Got interrupt, status = 0000ff0a, GIS
= 0080
Apr 30 23:52:59 asterisk kernel: VPM: Span 2 U-law mode
Apr 30 23:52:59 asterisk kernel: 2G: Got interrupt, status = 0000ff0a, GIS
= 0080
Apr 30 23:52:59 asterisk kernel: 2G: Got interrupt, status = 0000ff0a, GIS
= 0080
Apr 30 23:52:59 asterisk kernel: VPM: DTMF threshold set to 1000
Apr 30 23:52:59 asterisk kernel: 2G: Got interrupt, status = 0000ff0a, GIS
= 0080
Apr 30 23:52:59 asterisk kernel: VPM: Span 3 U-law mode
Apr 30 23:52:59 asterisk kernel: 2G: Got interrupt, status = 0000ff0b, GIS
= 0081
Apr 30 23:52:59 asterisk kernel: 2G: Got interrupt, status = 0000ff0a, GIS
= 0080
Apr 30 23:52:59 asterisk kernel: VPM: DTMF threshold set to 1000
Apr 30 23:52:59 asterisk kernel: 2G: Got interrupt, status = 0000ff0a, GIS
= 0080
Apr 30 23:52:59 asterisk last message repeated 2 times
Apr 30 23:52:59 asterisk kernel: VPM: DTMF threshold set to 1000
Apr 30 23:52:59 asterisk kernel: 2G: Got interrupt, status = 0000ff0a, GIS
= 0080
Apr 30 23:52:59 asterisk kernel: 2G: Got interrupt, status = 0000ff0a, GIS
= 0080
Apr 30 23:52:59 asterisk kernel: VPM: DTMF threshold set to 1000
Apr 30 23:52:59 asterisk last message repeated 2 times
Apr 30 23:52:59 asterisk kernel: VPM(2nd Gen): Present and operational
servicing 4 span(s)
Apr 30 23:52:59 asterisk kernel: Completed startup!
Apr 30 23:52:59 asterisk kernel: About to enter spanconfig!
Apr 30 23:52:59 asterisk kernel: About to enter startup!
Apr 30 23:52:59 asterisk kernel: TE4XXP: Span 1 configured for ESF/B8ZS
Apr 30 23:52:59 asterisk kernel: Completed startup!
Apr 30 23:52:59 asterisk kernel: Registered tone zone 0 (United States /
North America)
Apr 30 23:52:59 asterisk kernel: About to enter spanconfig!
Apr 30 23:52:59 asterisk kernel: About to enter startup!
Apr 30 23:52:59 asterisk kernel: TE4XXP: Span 1 configured for ESF/B8ZS
Apr 30 23:52:59 asterisk kernel: Completed startup!
Apr 30 23:52:59 asterisk kernel: Registered tone zone 0 (United States /
North America)
Apr 30 23:52:59 asterisk kernel: About to enter spanconfig!
Apr 30 23:52:59 asterisk kernel: About to enter startup!
Apr 30 23:52:59 asterisk kernel: TE4XXP: Span 1 configured for ESF/B8ZS
Apr 30 23:52:59 asterisk kernel: Completed startup!
Apr 30 23:52:59 asterisk kernel: Registered tone zone 0 (United States /
North America)
Apr 30 23:52:59 asterisk kernel: About to enter spanconfig!
Apr 30 23:52:59 asterisk kernel: About to enter startup!
Apr 30 23:52:59 asterisk kernel: TE4XXP: Span 1 configured for ESF/B8ZS
Apr 30 23:52:59 asterisk kernel: Completed startup!
Apr 30 23:52:59 asterisk kernel: Registered tone zone 0 (United States /
North America)
Apr 30 23:52:59 asterisk kernel: usbcore: registered new driver wcusb
Apr 30 23:52:59 asterisk kernel: Wildcard USB FXS Interface driver registered
Apr 30 23:52:59 asterisk kernel: About to enter spanconfig!
Apr 30 23:52:59 asterisk kernel: About to enter startup!
Apr 30 23:52:59 asterisk kernel: TE4XXP: Span 1 configured for ESF/B8ZS
Apr 30 23:52:59 asterisk kernel: Completed startup!
Apr 30 23:52:59 asterisk kernel: Registered tone zone 0 (United States /
North America)
Apr 30 23:53:02 asterisk kernel: About to enter spanconfig!
Apr 30 23:53:02 asterisk kernel: About to enter startup!
Apr 30 23:53:02 asterisk kernel: TE4XXP: Span 1 configured for ESF/B8ZS
Apr 30 23:53:02 asterisk kernel: Completed startup!
Apr 30 23:53:02 asterisk kernel: Registered tone zone 0 (United States /
North America)
Apr 30 23:53:07 asterisk kernel: wct4xxp: Clearing yellow alarm on span 1

Terence Burnard wrote:
> # cat /etc/zaptel.conf
>
> span=1,0,0,esf,b8zs
> bchan=1-23
> dchan=24
> loadzone=us
> defaultzone=us
>
>
>   
I don't know if this will fix your problem, but the span line should read:

span=1,1,0,esf,b8zs

You get your timing from the telco.

Doug


-- 
Ben Franklin quote:

"Those who would give up Essential Liberty to purchase a little Temporary
Safety, deserve neither Liberty nor Safety."

On Monday 01 May 2006 01:42, Terence Burnard wrote:
> Module                  Size  Used by
> wcusb                  21760  0
> wctdm                  36512  0
> wcfxo                  13408  0
> wcte11xp               24896  0
> wct1xxp                16544  0
> wct4xxp                97664  24
> tor2                   89856  0
First of all, don't load every Asterisk module under the sun.  Load the 
modules for the hardware you have, and if you're using something like A@H 
which loads everything, edit your /etc/modules.conf to alias the ones you do 
NOT have to 'off' to prevent them from being loaded.
> # cat /etc/zaptel.conf
> span=1,0,0,esf,b8zs
That should read '1,1,0' but is otherwise great.  You want to
synchronize to
the telco.
> [channels]
> context=pri_inbound
> switchtype=dms100
> signalling=pri_cpe
> group=1
> channel => 1-23
I generally add
pridialplan=unknown
priindication=outofband
overlapdial=no
resetinterval=86400

to that as well (i.e. before the "channel =>" line) to make things
a little
cleaner and clearer.  Only the first line would have any effect on mitigating 
your problem, though.
> *CLI> pri show span 1
> Primary D-channel: 24
> Status: Provisioned, Down, Active
That's the problem: your D channel is not up.  Either your switchtype is
wrong
(it is NOT set to the physical switch make/model on the other side, it is set 
to the signaling system it is emulating), the telco's brought the line down,
or the two sides just can't see each other.  Since you're running 
green-light, you're seeing each other.

You can do a very simple test by plugging a loopback plug into the span 
instead of the PRI.  just take an RJ45 end and two pieces of wire.  plug one 
wire into pins 1 and 4, and the other into 2 and 5.  Crimp it down and plug 
it in.  The light on the back of the card should go green and the system 
should be in the exact same state it's in now.  If you change your
signalling
to pri_net, you should see messages on the Asterisk console complaining about 
"I'm set to pri_net, but the other side thinks it is pri_net!".

Verify your switchtype...  The Cisco should have a setting and you should set 
Asterisk in a similar fashion.  Failing that I would try loading the wct4xxp 
module with the "vpmsupport=0" parameter to disable the voice
processing
module just to see if that helps (i.e. possible card issue), and failing all 
of that, I would contact Digium technical support, as the price of that card 
included technical assistance and it is this type of problem that is a great 
use of that support.

-A.