[asterisk-users] CallerID inconsistently presented through ISDN/cellular networks

[Olivier]

Hi,

As promised, here is a follow up on my quest to get CallerID correctly
presented when forwarding calls to cellphones.

Here is a reminder of the issue at hand:

Alice (GSM handset) calls Bob (ISDN-connected Asterisk extension) which
forwards to Cory (GSM handset)
What I would like to get is to see Alice's number (not Bob's number)
presented to Cory.
Sometimes, I get Alice's number, sometimes, I get Bob's number (new
findings from last sunday trials).
And of course, if Daniel or Eric would call Bob, the CallerID number
presented to Cory would either be Daniel's number, Eric's number or Bob's
number depending on a root cause I'm looking after for several days now.



To check if CallerID is filtered or controlled by Telco, I originated calls
from Asterisk using hand crafted caller ids: any CallerID was correctly
presented.
So I originally thought the root cause I'm after is a telco equipment
switching ANI and CID.
But a close look at some last trials output makes me asking for opinions
from this list readers.

Here follows, the anonymized (and hand indented) output of command PRI
debug command.
I focused on the end of call setup dialog.

For the successfully presented call, the output is:
[Nov  6 09:32:07] VERBOSE[27954] chan_dahdi.c: > [6c 0b 21 83 37 38 36 XX
XX XX XX XX XX]
[Nov  6 09:32:07] VERBOSE[27954] chan_dahdi.c: > Calling Number (len=13) [
Ext: 0  TON: National Number (2)  NPI: ISDN/Telephony Numbering Plan
(E.164/E.163) (1)
[Nov  6 09:32:07] VERBOSE[27954] chan_dahdi.c: >
Presentation: Presentation allowed of network provided number (3)
'78649XXXX' ]
[Nov  6 09:32:07] VERBOSE[27954] chan_dahdi.c: > [70 0b 80 30 36 37 31 XX
XX XX XX XX XX]
[Nov  6 09:32:07] VERBOSE[27954] chan_dahdi.c: > Called Number (len=13) [
Ext: 1  TON: Unknown Number Type (0)  NPI: Unknown Number Plan (0)
'067100XXXX' ]
[Nov  6 09:32:07] VERBOSE[27954] chan_dahdi.c: > [74 0e 21 01 8f 33 33 33
34 34 XX XX XX XX XX XX]
[Nov  6 09:32:07] VERBOSE[27954] chan_dahdi.c: > Redirecting Number
(len=16) [ Ext: 0  TON: National Number (2)  NPI: ISDN/Telephony Numbering
Plan (E.164/E.163) (1)
[Nov  6 09:32:07] VERBOSE[27954] chan_dahdi.c:
>                               Ext: 0  Presentation: Presentation
permitted, user number passed network screening (1)
[Nov  6 09:32:07] VERBOSE[27954] chan_dahdi.c:
>                               Ext: 1  Reason: Forwarded unconditionally
(15)
[Nov  6 09:32:07] VERBOSE[27954] chan_dahdi.c:   '3334436XXXX' ]
[Nov  6 09:32:07] VERBOSE[27954] chan_dahdi.c: > [a1]
[Nov  6 09:32:07] VERBOSE[27954] chan_dahdi.c: > Sending Complete (len= 1)


For the unsuccessfully presented call, the output is:
[Nov  6 09:25:29] VERBOSE[27927] chan_dahdi.c: > [6c 0b 21 83 36 37 38 XX
XX XX XX XX XX]
[Nov  6 09:25:29] VERBOSE[27927] chan_dahdi.c: > Calling Number (len=13) [
Ext: 0  TON: National Number (2)  NPI: ISDN/Telephony Numbering Plan
(E.164/E.163) (1)
[Nov  6 09:25:29] VERBOSE[27927] chan_dahdi.c: >
Presentation: Presentation allowed of network provided number (3)
'67854XXXX' ]
[Nov  6 09:25:29] VERBOSE[27927] chan_dahdi.c: > [70 0b 80 30 36 37 31 XX
XX XX XX XX XX]
[Nov  6 09:25:29] VERBOSE[27927] chan_dahdi.c: > Called Number (len=13) [
Ext: 1  TON: Unknown Number Type (0)  NPI: Unknown Number Plan (0)
'067100XXXX' ]
[Nov  6 09:25:29] VERBOSE[27927] chan_dahdi.c: > [a1]
[Nov  6 09:25:29] VERBOSE[27927] chan_dahdi.c: > Sending Complete (len= 1)


Am I correctly interpreting when saying that in the successful call,
Asterisk is sending a [74 0e 21 01 8f 33 33 33 34 34 XX XX XX XX XX XX]
message which is not otherwise sent ?
What can explains this difference ?
Is this something I can (should) control ?

For reference:
dahdi show version
DAHDI Version: SVN-trunk-r8853M Echo Canceller: OSLEC
pri show version
libpri version: 1.4.10.2



Regards
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