[asterisk-users] Make a transfer for external line.

[Gustavo Duarte]

   Hi all,

We have an asterisk version v1.6.1.20 with a TDM400 board (2 FXS and 2 
FXO).
We want to do a transfer "blind" and "attended" from a line external 
connected to one FXO.

We have made configuration, and transfers from internal lines (FXS) work 
fine but from (FXO) not.

We have made 2 test, one work fine from FXS and the other form FXO no.

Test 1, work fine:

1) A (FXS-1) --- call ----> B(FXS-2)
2) B (FXS-2) press #1 (blind transfer) after that press dtmf  9 (to 
dial  FXO-1).
3) B hungup.
4) A ---- connected to ---- linea externa FXO-1.


Test 2, did't work.

1) A (FXS-1) --- call ----> B(FX0-1)
2) B (FX0-1) digita #1 (blind transfer), listen tone and when press any 
dtm the call hungup.

Bellow you can see, log when we try a blind transfer from FXO.

[Aug 18 09:16:58] DEBUG[4756]: features.c:2053 ast_feature_interpret: 
Feature interpret: chan=SIP/gustavo-00000002, peer=DAHDI/65-1, code=#1, 
sense=2, features=2, dynamic=#
[Aug 18 09:16:58] DEBUG[4756]: features.c:1948 feature_interpret_helper: 
Feature detected: fname=Blind Transfer sname=blindxfer exten=#1
[Aug 18 09:16:58] DEBUG[4756]: rtp.c:2648 ast_rtp_new_source: Setting 
the marker bit due to a source update
     -- Started music on hold, class 'default', on channel 
'SIP/gustavo-00000002'
[Aug 18 09:16:58] DEBUG[4756]: channel.c:3710 set_format: Set channel 
DAHDI/65-1 to write format ulaw
     -- <DAHDI/65-1> Playing 'pbx-transfer.ulaw' (language 'es')
[Aug 18 09:16:58] DEBUG[4756]: channel.c:3710 set_format: Set channel 
DAHDI/65-1 to write format slin
[Aug 18 09:16:59] DEBUG[3245]: rtp.c:1246 ast_rtcp_read: Got RTCP report 
of 108 bytes
[Aug 18 09:17:03] DEBUG[3245]: rtp.c:1246 ast_rtcp_read: Got RTCP report 
of 108 bytes
    [b] -- Unable to find extension '' in context 'from-pstn' [/b]

Please let me to know if you need configuration files.

Thanks in advance.

Gustavo Duarte.