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/branches/1.8/channels/sig_pri.c <https://reviewboard.asterisk.org/r/3521/#comment21704> This is really hard to read, particularly with the level of indentation that is required here. Is there is any way the detection of match_more / need_dialtone can be put into small functions, that would be... nice. match_more = can_pri_match_more(e, pri); need_dialtone = do_i_need_dialtone(match_more, e, pri); Something like that. - Matt Jordan On May 1, 2014, 9:35 p.m., rmudgett wrote: > > ----------------------------------------------------------- > This is an automatically generated e-mail. To reply, visit: > https://reviewboard.asterisk.org/r/3521/ > ----------------------------------------------------------- > > (Updated May 1, 2014, 9:35 p.m.) > > > Review request for Asterisk Developers. > > > Bugs: AST-1338 > https://issues.asterisk.org/jira/browse/AST-1338 > > > Repository: Asterisk > > > Description > ------- > > This review and https://reviewboard.asterisk.org/r/3520/ work together to > allow Asterisk to control the inband audio available progress indication ie > on the SETUP_ACKNOWLEDGE message when dialtone is present. > > When overlap dialing is enabled, the lack of inband audio available > information in the SETUP_ACKNOWLEDGE events causes an interoperability > problem with SIP. sig_pri doesn't know if there is dialtone present when a > SETUP_ACKNOWLEDGE is received so it assumes it is there and posts an > AST_CONTROL_PROGRESS frame. The SIP channel driver then sends out a 183 > Session Progress and blocks the desired 180 Ringing message when the ALERTING > message comes in. > > * Made the configure script detect if the installed version of libpri > supports the SETUP_ACKNOWLEDGE enhancements. > > * Using the new API, made generate an AST_CONTROL_PROGRESS frame on an > incoming SETUP_ACKNOWLEDGE message when the message indicates inband audio is > present insetad of assuming that dialtone is present. > > * Using the new API, made SETUP_ACKNOWLEDGE send out an inband audio > available indication only if dialtone is expected. The change also makes the > fallback behaviour of sending the PROGRESS message better by sending it only > if dialtone is expected. > > * Changed receiving a PROCEEDING message to not generate an > AST_CONTROL_PROGRESS frame if the progress indication ie indicates > non-end-to-end-ISDN. This helps interoperability with SIP. > > * Changed sending a PROCEEDING message in response to an > AST_CONTROL_PROCEEDING frame to not indicate inband audio available. It was > silly to do so anyway because the channel driver doesn't know if inband audio > is even available. This helps interoperability with SIP. > > > Diffs > ----- > > /branches/1.8/include/asterisk/autoconfig.h.in 413194 > /branches/1.8/configure.ac 413194 > /branches/1.8/configure UNKNOWN > /branches/1.8/channels/sig_pri.c 413194 > > Diff: https://reviewboard.asterisk.org/r/3521/diff/ > > > Testing > ------- > > Sent calls over an ISDN trunk with overlap dialing enabled that did and did > not present dialtone for more digits. > Observed that the inband audio available progress indication ie was sent when > needed on the SETUP_ACKNOWLEDGE message. > Added a debug message that indicated when Asterisk did and did not receive > the inband audio indication for the SETUP_ACKNOWLEDGE message. > > > Thanks, > > rmudgett > >
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