[asterisk-ss7] Trixbox, Sangoma A101 and libSS7

[Geoffrey Yeoh]

Further to my post last month, I've done the following but still have
problem in getting the linkset up..

 

1.       Installed two trixbox PC with trixbox 2.8.0.3 (Dahdi version
2.2.0-4 and Asterisk version 1.6.0.10-5).

2.       Each trixbox is equipped with a Sangoma A101 card (No echo
cancellation hardware) configured with Sangoma Wanpipe driver version
3.5.11.

3.       Configured both cards as E1 and TDM as voice protocol.

4.       Connect both cards with a crossover cable (1-4,2-5 / 4-1,5-2)

5.       Setup the following configuration files:

 

TRIXBOX 1 -

/etc/dahdi/system.conf

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

bchan=1-15,17-31

dchan=16

echocanceller=mg2,1-15,17-31

loadzone=us

defaultzone=us

 

/etc/asterisk/chan_dahdi.conf

[channels]

echocancel=no

echocancelwhenbridged=no

group=1

signalling=ss7

ss7type=itu

ss7_called_nai=national

ss7_calling_nai=national

linkset=1

pointcode=1

adjpointcode=2

defaultdpc=2

networkindicator=national

sigchan=16

cicbeginswith=1

channel=1-15

cicbeginswith=17

channel=17-31

ss7_internationalprefix=00

ss7_nationalprefix=0

 

TRIXBOX 2 - 

/etc/dahdi/system.conf

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

bchan=1-15,17-31

dchan=16

echocanceller=mg2,1-15,17-31

loadzone=us

defaultzone=us

 

/etc/asterisk/chan_dahdi.conf

[channels]

echocancel=no

echocancelwhenbridged=no

group=1

signalling=ss7

ss7type=itu

ss7_called_nai=national

ss7_calling_nai=national

linkset=1

pointcode=2

adjpointcode=1

defaultdpc=1

networkindicator=national

sigchan=16

cicbeginswith=1

channel=1-15

cicbeginswith=17

channel=17-31

ss7_internationalprefix=00

ss7_nationalprefix=0

 

With both setup, I've ran dahdi_scan on both machines and got the following
result on both machines:

 

[trixbox1.localdomain ~]# dahdi_scan

[1]

active=yes

alarms=OK

description=wanpipe1 card 0

name=WPE1/0

manufacturer=

devicetype=

location=

basechan=1

totchans=31

irq=0

type=digital-

syncsrc=0

lbo=0 db (CSU)/0-133 feet (DSX-1)

coding_opts=HDB3

framing_opts=CCS,CRC4

coding=HDB3

framing=CCS

 

Visually, I can see both cards status LED is showing green which means good
connection.

 

[trixbox1.localdomain ~]# wanrouter status

Devices currently active: wanpipe1

 

Wanpipe Config:

Device name | Protocol Map | Adapter  | IRQ | Slot/IO | If's | CLK | Baud
rate |

wanpipe1    | N/A          | A101/2   | 201 | 5       | 1    | N/A | 0
|

 

Wanrouter Status:

Device name | Protocol | Station | Status        |

wanpipe1    | AFT TE1  | N/A     | Connected     |

 

The /etc/wanpipe.conf on both cards is similar:

 

[devices]

wanpipe1 = WAN_AFT, Comment

[interfaces]

w1g1 = wanpipe1, , TDM_VOICE, Comment

[wanpipe1]

CARD_TYPE     = AFT

S514CPU       = A

CommPort      = PRI

AUTO_PCISLOT = NO

PCISLOT       = 5

PCIBUS        = 2

FE_MEDIA      = E1

FE_LCODE      = HDB3

FE_FRAME      = CRC4

FE_LINE              = 1

TE_CLOCK      = MASTER (The second machine, the card is configured as
NORMAL)

TE_REF_CLOCK = 0

TE_HIGHIMPEDANCE     = NO

TE_RX_SLEVEL  = 430

LBO           = 120OH

TE_SIG_MODE   = CCS

FE_TXTRISTATE = NO

MTU           = 1500

UDPPORT       = 9000

TTL           = 255

IGNORE_FRONT_END = NO

TDMV_SPAN     = 1

TDMV_DCHAN    = 16

TDMV_HW_DTMF  = NO

[w1g1]

ACTIVE_CH     = ALL

TDMV_ECHO_OFF = NO

TDMV_HWEC     = NO

 

The problem is, when I tried to check the status of the SS7 linkset, it's
telling me that the link is still down.

 

trixbox1*CLI> ss7 show linkset 1

SS7 linkset 1 status: Down

 

trixbox1*CLI> ss7 debug linkset 1

Enabled debugging on linkset 1

Len = 4 [ ff ff 01 00 ]

FSN: 127 FIB 1

BSN: 127 BIB 1

>[0] LSSU SIO

Link state change: NOTALIGNED -> IDLE

Link state change: IDLE -> NOTALIGNED

Link state change: NOTALIGNED -> IDLE

Link state change: IDLE -> NOTALIGNED

 

 

Could someone help me on what else I need to check/configure to get the link
up?  Thanks in advance.

 

Cheers,

Geoffrey

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