E&M signalling do not have seperate signalling channel.
Configure as e&m=1-31
Mitul
On Jul 26, 2012 6:40 AM, "Jorge Mendoza" <jmendozat at
tcc.com.pe> wrote:
> Hi,
>
> We are trying to connect an Asterisk server with a Channel Bank with
E&M
> interfaces using a RedFone TDMoE device.
> The CB have a E1 CAS interface.
> OS: Ubuntu Server 11.10 64 bits
> dahdi: dahdi-linux-complete-2.6.1+2.6.1
>
> Redfone configuration:
> /etc/redfone.conf
>
> [span1]
> framing=cas
> encoding=hdb3
>
> System configuration:
> /etc/dahdi/system.conf
>
> dynamic=ethmf,eth0/00:50:c2:65:e0:64/0,31,1
> dynamic=ethmf,eth0/00:50:c2:65:e0:64/1,31,0
>
> e&me1=1-15,17-31
> dchan=16
>
> alaw=1-31
>
> loadzone = fr
> defaultzone = fr
>
> Error message:
> =======================================================> # dahdi_cfg
-vvvvv
>
> Changing signalling on channel 1 from Unused to E & M E1
> Changing law on channel 1 from Mu-law to A-law
> DAHDI_CHANCONFIG failed on channel 1: Invalid argument (22)
> Selected signaling not supported
> Possible causes:
> e&me1 signaling is being used on a T1 line (use e&m)
> RBS signaling is being used on a E1 CCS span
> Signaling is being assigned to channel 16 of an E1 CAS span
> ========================================================>
> I don't understand the last possible cause mentioned: "Signaling
is being
> assigned to channel 16 of an E1 CAS span", because the dchan is
channel 16.
> Where is the error?
> Thank you.
> --
> Jorge Mendoza
>
> --
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