Dual Digium TE820 config

Asterisk Asterisk Support
1

I have two Digium TE820B PRI T1 cards, the first 8 channels on card one works fine, the second card I have 2 PRI T1’s plugged in for a total of 10 channels. Dahdi tools shows green but running asterisk -rx “pri show spans” shows those 2 T1’s provisioned down. One other guy here say’s the D channel is not coming up. We’re thinking maybe a timing deal?

We switched T1’s from one of the 8 working ports to the 2 non-working ports and it shows the same, meaning that the port 9 and 10 won’t come up, even with a T1 plugged in that just previously worked in port 1 - 8. So we’re thinking this is not the telco but somethign on our configuration?

Asterisk version 1.4.35
Dahdi linux version 2.6.0

asterisk -rx “pri show spans”

PRI span 1/0: Provisioned, Up, Active
PRI span 2/0: Provisioned, Up, Active
PRI span 3/0: Provisioned, Up, Active
PRI span 4/0: Provisioned, Up, Active
PRI span 5/0: Provisioned, Up, Active
PRI span 6/0: Provisioned, Up, Active
PRI span 7/0: Provisioned, Up, Active
PRI span 8/0: Provisioned, Up, Active
PRI span 9/0: Provisioned, Down, Active
PRI span 10/0: Provisioned, Down, Active

/etc/dahdi/system.conf
span=1,1,0,esf,b8zs
span=2,1,0,esf,b8zs
span=3,1,0,esf,b8zs
span=4,1,0,esf,b8zs
span=5,1,0,esf,b8zs
span=6,1,0,esf,b8zs
span=7,1,0,esf,b8zs
span=8,1,0,esf,b8zs
span=9,1,0,esf,b8zs
span=10,1,0,esf,b8zs

bchan=1-23,25-47,49-71,73-95,97-119,121-143,145-167,169-191,193-215,217-239
dchan=24,48,72,96,120,144,168,192,216,240
echocanceller=HWEC,1-23,25-47,49-71,73-95,97-119,121-143,145-167,169-191,193-215,217-239

/etc/asterisk/chan_dahdi.conf
;**********GENERAL SETTINGS FOR ALL T1’s
usecallerid=yes
callerid=asreceived
cidsignalling=bell
cidstart=ring
hidecallerid=no
callwaiting=yes
usecallingpres=yes
callwaitingcallerid=yes
threewaycalling=yes
transfer=yes
canpark=yes
cancallforward=yes
callreturn=yes
echocancelwhenbridged=no
callprogress=no
relaxdtmf=yes
resetinterval=never

;********************** INDIVIDUAL T1’s ***********************
;Primary T1
context=outside
switchtype=ni1
signalling=pri_cpe
immediate=no
echocancel=yes
rxgain=-4
txgain=-6
group=1
callgroup=1
pickupgroup=1
resetinterval=never
channel => 1-23
channel => 25-47
channel => 49-71
channel => 73-95
channel => 97-119
channel => 121-143
channel => 145-167
channel => 169-191
channel => 193-215
channel => 217-239

2

Howdy,

Please contact Digium’s Support department directly:

+1 256 428 6000

or:

digium.com/support

3

I have the same problem.
Would you please kindly tell me how to solve it ?

tks,
Jeremy

4

I think what you’re seeing is resolved in the 2.7.0.1 (download tarball) version of DAHDI-Linux in commit wct4xxp: Ensure all spans are configured by default..

With 2.6.0, you need to make sure all spans of all cards are configured, in this case you’re only configuring 2 of the second cards spans.

Still, it’s highly recommended to contact support if you’re having any issues with your digital cards.

5

thank you sruffell.

i’m using libpri 1.4.14, dahdi 2.7.0.1 and asterisk 11.6.0.
after installation i ran dahdi_genconf to have /etc/dahdi/system.conf and /etc/asterisk/dahdi-channels.conf . I made a little change ,
/etc/dahdi/system:

Span 1: TE8/0/1 “T8XXP (PCI) Card 0 Span 1” (MASTER)

span=1,1,0,ccs,hdb3 << removed crc4

termtype: te

bchan=1-15,17-31
dchan=16
echocanceller=mg2,1-15,17-31

/etc/asterisk/dahdi-channels.conf
; Span 1: TE8/0/1 “T8XXP (PCI) Card 0 Span 1” (MASTER)
group=2,21 << changed group number
context=from-pstn
switchtype = euroisdn
signalling = pri_cpe
channel => 1-15,17-31
context = default
group = 63

tks,
Jeremy