[asterisk-ss7] chan_ss7 | Link established but no voice

[amine]

Hi All,

Any help is welcomed & thanks in advance

_Scenario : _
Sip Phone(machine1) ---> SS7 Link --> Sip Phone(machine2)

_Problem : _
The call pass through, the destination extensions rings. when I Pick Up
i continue to hear the ringing in both extensions and there is no voice.

Within Asterisk Logs i have the next warning message :

 NOTICE[28699]: channel.c:2591 __ast_read: Dropping incompatible voice frame on SS7/siuc/30 of format ulaw since our native format has changed to 0x8 (alaw)


I tryed allow=all on sip.conf & iax.conf but the result is the same


_Current configuration :_
- Asterisk : 1.4.39.2
- Dahdi : 2.5.0.2
- Kernel : 2.6.30.10
- chan_ss7 : 2.1.0
- 2 Machines : Machine1 (ipbrick144 | 172.31.3.144) + Machine2
(ipbrick145 | 172.31.3.145)
- chan_dahdi unloaded, chan_ss7 loaded

_Machine 1:_
_ss7.conf _

[linkset-siuc]

enabled => yes

enable_st => no

use_connect => no

hunting_policy => even_mru

context => PBX1_Asterisk

language => da

t35 => 15000,timeout

subservice => auto 

; The host running the mtp3 service

;mtp3server => localhost

[link-l1]

linkset => siuc

channels => 1-15,17-31

schannel => 16

firstcic => 1

enabled => yes

sltm => no 

[host-ipbrick145]

default_linkset=>siuc

enabled => yes

opc => 0x1

dpc => siuc:0x2

links => l1:1

if-1 => 172.31

_/etc/dahdi/system.conf_

span=1,0,0,ccs,hdb3

bchan=1-15,17-31

mtp2=16

#bchan=16

#dchan=16


_Link status_

linkset:siuc, link:l1/16, state:INSERVICE, sls:0, total:   3519/    16

_Channels status_

CIC   1 Idle

..

CIC   31 Idle



_Machine 2:_
_ss7.conf _

[linkset-siuc]

enabled => yes

enable_st => no

use_connect => no

hunting_policy => even_mru

context => PSTN2_Asterisk

language => en

t35 => 15000,timeout

subservice => auto

; The host running the mtp3 service

;mtp3server => localhost

[link-l1]

linkset => siuc

channels => 1-15,17-31

schannel => 16

firstcic => 1

enabled => yes

sltm => no 

[host-ipbrick144]

default_linkset=>siuc

enabled => yes

opc => 0x2

dpc => siuc:0x1

links => l1:1

if-1 => 172.31.3.144

_/etc/dahdi/system.conf
_

span=1,1,0,ccs,hdb3

bchan=1-15,17-31

mtp2=16

#bchan=16

#dchan=16

_Link status_

linkset:siuc, link:l1/16, state:INSERVICE, sls:0, total:   3663/    16

_
_

_Channels status_

CIC   1 Idle

 ..

CIC   31 Idle

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