asterisk users - May 2006 - Ringing indication not working as expected

Hi all,

are there any caveats regarding ringing indication with Asterisk?

I have got an asterisk installation with a quadBRI driven by BRIstuff.
Internal phones are various snoms (320 / 360) connected via SIP and
Idefisk softphones connected via IAX2. Outgoing calls are "routed"
through the Zap interfaces.

When i set up the action for an external extension as

Dial(Zap/g2/<number>,60,R)

or

Dial(Zap/g2/<number>,60)

and initiate an outgoing call, Asterisk tells me that the called party
is ringing (Zap/4-1 is ringing) but there is no ringing indicated to the
calling party. No matter whether the calling party is a snom hardphone
or an idefisk softphone.

Am i missing something?

asterisk*CLI> show version
Asterisk 1.2.7.1-BRIstuffed-0.3.0-PRE-1p

- Sebastian

"R" is not a valid Dial option.  "r" is the option you
wanted.  HOWEVER,
if you are not hearing ringback, "r" will almost never fixes the
issue.

Make sure you have a /etc/asterisk/indications.conf   In some situations 
if you do not have that file you will not hear ringback.

Sebastian Kayser wrote:
> Hi all,
> 
> are there any caveats regarding ringing indication with Asterisk?
> 
> I have got an asterisk installation with a quadBRI driven by BRIstuff.
> Internal phones are various snoms (320 / 360) connected via SIP and
> Idefisk softphones connected via IAX2. Outgoing calls are
"routed"
> through the Zap interfaces.
> 
> When i set up the action for an external extension as
> 
> Dial(Zap/g2/<number>,60,R)
> 
> or
> 
> Dial(Zap/g2/<number>,60)
> 
> and initiate an outgoing call, Asterisk tells me that the called party
> is ringing (Zap/4-1 is ringing) but there is no ringing indicated to the
> calling party. No matter whether the calling party is a snom hardphone
> or an idefisk softphone.
> 
> Am i missing something?
> 
> asterisk*CLI> show version
> Asterisk 1.2.7.1-BRIstuffed-0.3.0-PRE-1p
> 
> - Sebastian
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* Eric ManxPower Wieling <eric@fnords.org> wrote:
> "R" is not a valid Dial option.  
Sure about that? My Asterisk installation lists it as a valid option.

asterisk*CLI> show application Dial
[...]
    R    - indicate ringing to the calling party when the called
           party indicates
[...]
> "r" is the option you wanted.  HOWEVER, if you are not hearing
ringback,
> "r" will almost never fixes the issue.
"r" leads to the ringing being indicated right from the start. So if i
call my cellphone from a SIP-connected snom, ringing is indicated to me
immediately, whereas the cellphone starts to ring not until about 3-5
seconds later. =/
> Make sure you have a /etc/asterisk/indications.conf   In some situations 
> if you do not have that file you will not hear ringback.
Thanks for the advice. indications.conf is now existent and Asterisk is
reloaded but the problem still persists.

/etc/asterisk/indiciations.conf:

[general]
country=de

[de]
description = Germany
ringcadance = 1000,4000
dial = 425
ring = 425/1000,0/4000
busy = 425/480,0/480
congestion = 425/480,0/480
callwaiting = 425/2000,0/6000
dialrecall = 425/500,0/500,425/500,0/500,425/500,0/500,1600/100,0/900
record = 1400/500,0/15000
info = 950/330,0/200,1400/330,0/200,1800/330,0/1000

- Sebastian

> Thanks for the advice. indications.conf is now existent and 
> Asterisk is reloaded but the problem still persists.
Reloaded? Peraphs restarted is better...

DV

* Sebastian Kayser <mls+asterisk-users@skayser.de>
wrote:
> are there any caveats regarding ringing indication with Asterisk?
> 
> I have got an asterisk installation with a quadBRI driven by BRIstuff.
> Internal phones are various snoms (320 / 360) connected via SIP and
> Idefisk softphones connected via IAX2. Outgoing calls are
"routed"
> through the Zap interfaces.
> 
> When i set up the action for an external extension as
> 
> Dial(Zap/g2/<number>,60,R)
> 
> or
> 
> Dial(Zap/g2/<number>,60)
> 
> and initiate an outgoing call, Asterisk tells me that the called party
> is ringing (Zap/4-1 is ringing) but there is no ringing indicated to the
> calling party. No matter whether the calling party is a snom hardphone
> or an idefisk softphone.
I tried to narrow down the problem. My installation looks like this


PSTN <-- 3 x BRI --> POTS (NEC) <-- 3 x BRI --> Asterisk
                      ^                             ^ 
                      |                             |
                POTS telephone sets              snom SIP phones

With no options set in the Dial command, i.e. Dial(Zap/g2/<number>,60),
the ringing behaviour is as follows.

- snom -> snom - OK
- snom -> POTS telephone set - OK
- snom -> PSTN - NOK

OK = ringing is signalled to the calling party as soon as Asterisk
indicates it on the console (... is ringing).

NOK = no ringing is signalled to the calling party _although_ Asterisk
indicates it on the console.

So although the Zap interface is used for both types of "external"
calls
(snom -> POST, snom -> PSTN) the ringing indication to my snoms fails
for calls to the PSTN.

Any ideas on how to further debug / troubleshoot this behaviour?

- Sebastian