[asterisk-users] dahdi-channels.conf for Digium TDM2400

2010-12-22 Thread Alex Saavedra
Hello everyone,

I have noticed thar our dahdi-channels.conf has some repeating directives,
for instance for channel 2 (FXO) we have these settings:

;;; line=2 WCTDM/0/1 FXSKS
signalling=fxs_ks
callerid=asreceived
group=0
context=from-pstn
channel = 2
callerid=
group=
context=default


As you can see, a few directives are repeated (callerid, group, context).
This was generated by DAHDI tools, and since it's working I didn't want to
change it. Is it safe to remove them?

Thanks in advance,

Alex Saavedra
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Re: [asterisk-users] dahdi-channels.conf for Digium TDM2400

2010-12-22 Thread Gerald A
Hi,

On Wed, Dec 22, 2010 at 9:49 AM, Alex Saavedra 
a...@masterline-logistics.com wrote:


 I have noticed thar our dahdi-channels.conf has some repeating directives,
 for instance for channel 2 (FXO) we have these settings:

 ;;; line=2 WCTDM/0/1 FXSKS
 signalling=fxs_ks
 callerid=asreceived
 group=0
 context=from-pstn
 channel = 2
 callerid=
 group=
 context=default


 As you can see, a few directives are repeated (callerid, group, context).
 This was generated by DAHDI tools, and since it's working I didn't want to
 change it. Is it safe to remove them?


Short Answer: NO!!

Longer Answer: The settings all apply to channels, which are defined by the
channel = 2 directive. If I'm remembering correctly, the channel is set
at the end of the Stanza, not at the beginning. So, your blank callerid and
group would apply to your next channel directive (3?). Now, I remember
reading there
is a way to flip the channel definition bit (channel = XX) to the top of
the stanza, but can't recall. Now, if in between two channel definitions you
have repetition, it might be ok to trim things up, as long as it has the
right information -- the last setting is the effective one. And the bit that
starts ;;; is a comment, which is
actually ignored by asterisk.

Hope this helps,
Gerald.
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Re: [asterisk-users] dahdi-channels.conf for Digium TDM2400

2010-12-22 Thread Alex Saavedra
Gerald,

Thank you for the explanation. Glad I asked...

Alex Saavedra

On Wed, Dec 22, 2010 at 12:40 PM, Gerald A geraldabli...@gmail.com wrote:

 Hi,

 On Wed, Dec 22, 2010 at 9:49 AM, Alex Saavedra 
 a...@masterline-logistics.com wrote:


 I have noticed thar our dahdi-channels.conf has some repeating directives,
 for instance for channel 2 (FXO) we have these settings:

 ;;; line=2 WCTDM/0/1 FXSKS
 signalling=fxs_ks
 callerid=asreceived
 group=0
 context=from-pstn
 channel = 2
 callerid=
 group=
 context=default


 As you can see, a few directives are repeated (callerid, group, context).
 This was generated by DAHDI tools, and since it's working I didn't want to
 change it. Is it safe to remove them?


 Short Answer: NO!!

 Longer Answer: The settings all apply to channels, which are defined by the
 channel = 2 directive. If I'm remembering correctly, the channel is set
 at the end of the Stanza, not at the beginning. So, your blank callerid and
 group would apply to your next channel directive (3?). Now, I remember
 reading there
 is a way to flip the channel definition bit (channel = XX) to the top of
 the stanza, but can't recall. Now, if in between two channel definitions you
 have repetition, it might be ok to trim things up, as long as it has the
 right information -- the last setting is the effective one. And the bit that
 starts ;;; is a comment, which is
 actually ignored by asterisk.

 Hope this helps,
 Gerald.

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