Guys,

I made a list by grepping and perling around in the source.

grep -Pr "c(.)(\s+)switch_channel_set_variable\(channel, \"" * | grep -v "Binary" > /tmp/chan_vars.tmp

This gave me a massive list of all filenames and occurrences of “switch_channel_set_variable” with a channel variable explicitly named in quotes.

I then filtered out stuff with svn in the source filename and then create a tab-separated list of chan variables and source filenames.  Finally, I distilled that list with this script:

perl -n -e 'm/(\w+)\t(.*)/;next if (exists($seen{$1}));print $1 . "\t" . $2 . "\n";$seen{$1}=$2;' /tmp/chan_vars3.tmp

This yielded a nice list of variables.  Let me know what you think about using this as the base list for channel variables on the wiki:

Variable                            Source File:

limit_realm                         mod/applications/mod_limit/mod_limit.c

limit_id                            mod/applications/mod_limit/mod_limit.c

limit_max                           mod/applications/mod_limit/mod_limit.c

amd_result                          mod/applications/mod_amd/mod_amd.c

amd_status                          mod/applications/mod_amd/mod_amd.c

amd_wait_status                     mod/applications/mod_amd/mod_amd.c

amd_wait_result                     mod/applications/mod_amd/mod_amd.c

enum_route_count                    mod/applications/mod_enum/mod_enum.c

enum_auto_route                     mod/applications/mod_enum/mod_enum.c

voicemail_total_new_messages        mod/applications/mod_voicemail/mod_voicemail.c

voicemail_total_saved_messages      mod/applications/mod_voicemail/mod_voicemail.c

voicemail_urgent_new_messages       mod/applications/mod_voicemail/mod_voicemail.c

voicemail_urgent_saved_messages     mod/applications/mod_voicemail/mod_voicemail.c

voicemail_current_folder            mod/applications/mod_voicemail/mod_voicemail.c

voicemail_account                   mod/applications/mod_voicemail/mod_voicemail.c

voicemail_domain                    mod/applications/mod_voicemail/mod_voicemail.c

voicemail_caller_id_number          mod/applications/mod_voicemail/mod_voicemail.c

voicemail_caller_id_name            mod/applications/mod_voicemail/mod_voicemail.c

voicemail_file_path                 mod/applications/mod_voicemail/mod_voicemail.c

voicemail_read_flags                mod/applications/mod_voicemail/mod_voicemail.c

voicemail_time                      mod/applications/mod_voicemail/mod_voicemail.c

voicemail_priority                  mod/applications/mod_voicemail/mod_voicemail.c

voicemail_message_len               mod/applications/mod_voicemail/mod_voicemail.c

voicemail_email                     mod/applications/mod_voicemail/mod_voicemail.c

RECORD_ARTIST                       mod/applications/mod_voicemail/mod_voicemail.c

RECORD_DATE                         mod/applications/mod_voicemail/mod_voicemail.c

RECORD_SOFTWARE                     mod/applications/mod_voicemail/mod_voicemail.c

RECORD_TITLE                        mod/applications/mod_voicemail/mod_voicemail.c

RECORD_COMMENT                      mod/applications/mod_voicemail/mod_voicemail.c

RECORD_COPYRIGHT                    mod/applications/mod_voicemail/mod_voicemail.c

voicemail_notify_email              mod/applications/mod_voicemail/mod_voicemail.c

mailbox                             mod/applications/mod_dptools/mod_dptools.c

user_name                           mod/applications/mod_dptools/mod_dptools.c

domain_name                         mod/applications/mod_dptools/mod_dptools.c

xfer_uuids                          mod/applications/mod_dptools/mod_dptools.c

dialed_user                         mod/applications/mod_dptools/mod_dptools.c

dialed_domain                       mod/applications/mod_dptools/mod_dptools.c

sip_force_video_fmtp                mod/applications/mod_fsv/mod_fsv.c

fifo_priority                       mod/applications/mod_fifo/mod_fifo.c

fifo_status                         mod/applications/mod_fifo/mod_fifo.c

fifo_timestamp                      mod/applications/mod_fifo/mod_fifo.c

fifo_target                         mod/applications/mod_fifo/mod_fifo.c

dl_user                             mod/endpoints/mod_dingaling/mod_dingaling.c

dl_host                             mod/endpoints/mod_dingaling/mod_dingaling.c

dl_from_user                        mod/endpoints/mod_dingaling/mod_dingaling.c

dl_from_host                        mod/endpoints/mod_dingaling/mod_dingaling.c

sip_nat_detected                    mod/endpoints/mod_sofia/sofia_glue.c

sofia_profile_name                  mod/endpoints/mod_sofia/sofia_glue.c

auto_answer_destination             mod/endpoints/mod_sofia/sofia.c

sip_user_agent                      mod/endpoints/mod_sofia/sofia.c

sip_rtp_txstat                      mod/endpoints/mod_sofia/sofia.c

sip_rtp_rxstat                      mod/endpoints/mod_sofia/sofia.c

sip_call_id                         mod/endpoints/mod_sofia/sofia.c

sip_authorized                      mod/endpoints/mod_sofia/sofia.c

sip_term_status                     mod/endpoints/mod_sofia/sofia.c

sip_term_cause                      mod/endpoints/mod_sofia/sofia.c

transfer_fallback_extension         mod/endpoints/mod_sofia/sofia.c

call_clientcode                     mod/endpoints/mod_sofia/sofia.c

sofia_record_file                   mod/endpoints/mod_sofia/sofia.c

sip_received_ip                     mod/endpoints/mod_sofia/sofia.c

sip_received_port                   mod/endpoints/mod_sofia/sofia.c

sip_looped_call                     mod/endpoints/mod_sofia/sofia.c

sip_from_user_stripped              mod/endpoints/mod_sofia/sofia.c

sip_from_comment                    mod/endpoints/mod_sofia/sofia.c

sofia_profile_domain_name           mod/endpoints/mod_sofia/sofia.c

sip_to_comment                      mod/endpoints/mod_sofia/sofia.c

sip_referred_by_user_stripped       mod/endpoints/mod_sofia/sofia.c

sip_referred_by_cid                 mod/endpoints/mod_sofia/sofia.c

sip_subject                         mod/endpoints/mod_sofia/sofia.c

sip_via_host                        mod/endpoints/mod_sofia/sofia.c

sip_via_port                        mod/endpoints/mod_sofia/sofia.c

sip_via_rport                       mod/endpoints/mod_sofia/sofia.c

sip_gateway                         mod/endpoints/mod_sofia/sofia.c

alert_info                          mod/endpoints/mod_sofia/sofia.c

presence_id                         mod/endpoints/mod_sofia/sofia.c

call_timeout                        mod/dialplans/mod_dialplan_asterisk/mod_dialplan_asterisk.c

EXTEN                               mod/dialplans/mod_dialplan_asterisk/mod_dialplan_asterisk.c

CHANNEL                             mod/dialplans/mod_dialplan_asterisk/mod_dialplan_asterisk.c

UNIQUEID                            mod/dialplans/mod_dialplan_asterisk/mod_dialplan_asterisk.c

socket_path                         mod/event_handlers/mod_event_socket/mod_event_socket.c

socket_host                         mod/event_handlers/mod_event_socket/mod_event_socket.c

last_file_position                  mod/languages/mod_spidermonkey/mod_spidermonkey.c

hangup_cause                        switch_channel.c

endpoint_disposition                switch_channel.c

start_stamp                         switch_channel.c

profile_start_stamp                 switch_channel.c

answer_stamp                        switch_channel.c

progress_stamp                      switch_channel.c

progress_media_stamp                switch_channel.c

end_stamp                           switch_channel.c

start_epoch                         switch_channel.c

start_uepoch                        switch_channel.c

profile_start_epoch                 switch_channel.c

profile_start_uepoch                switch_channel.c

answer_epoch                        switch_channel.c

answer_uepoch                       switch_channel.c

end_epoch                           switch_channel.c

end_uepoch                          switch_channel.c

last_app                            switch_channel.c

last_arg                            switch_channel.c

caller_id                           switch_channel.c

duration                            switch_channel.c

billsec                             switch_channel.c

progresssec                         switch_channel.c

progress_mediasec                   switch_channel.c

flow_billsec                        switch_channel.c

mduration                           switch_channel.c

billmsec                            switch_channel.c

progressmsec                        switch_channel.c

progress_mediamsec                  switch_channel.c

flow_billmsec                       switch_channel.c

uduration                           switch_channel.c

billusec                            switch_channel.c

progressusec                        switch_channel.c

progress_mediausec                  switch_channel.c

flow_billusec                       switch_channel.c

read_codec                          switch_core_codec.c

read_rate                           switch_core_codec.c

write_codec                         switch_core_codec.c

write_rate                          switch_core_codec.c

video_read_codec                    switch_core_codec.c

video_read_rate                     switch_core_codec.c

video_write_codec                   switch_core_codec.c

video_write_rate                    switch_core_codec.c

sound_prefix                        switch_ivr_play_say.c