Ulaw codec

hello,
when i try ti make call using u law codec , the call not done at all, so ii want to ask if my asterisk doesn’t suuport u law how can i download it?

thanks,
radwa

The standard, default build of Asterisk does support mu-law. Where did you get your Asterisk from?

really my partner download it, but it is asterisk 1.4 , and can you tell me command that know if u law codec is exist in my asterisk?

For source build, make menuconfig.

For binary only, CLI: modules show will show what is loaded and shell: ls /usr/lib/asterisk/modules will show what is supplied.

It is very unlikely not to be there, so it may be more productive to provide the diagnostic messages that make you think it is missing.

i found that as output

codec_adpcm.so pbx_ael.so
app_minivm.so codec_alaw.so pbx_config.so
app_mixmonitor.so codec_a_mu.so pbx_dundi.so
app_morsecode.so codec_dahdi.so pbx_loopback.so
app_mp3.so codec_g722.so pbx_lua.so
app_nbscat.so codec_g723.so pbx_realtime.so
app_originate.so codec_g726.so pbx_spool.so
app_page.so codec_g729.so res_adsi.so
app_parkandannounce.so codec_gsm.so res_ael_share.so
app_playback.so codec_lpc10.so res_agi.so
app_playtones.so codec_speex.so res_ais.so
app_privacy.so codec_ulaw.so

dwa-laptop*CLI> core show translation
Translation times between formats (in microseconds) for one second of data
Source Format (Rows) Destination Format (Columns)

       g723   gsm  ulaw  alaw g726aal2 adpcm  slin lpc10  g729 speex  ilbc  g726  g722 siren7 siren14 slin16
 g723     -  4001     2     2     4001     2     1  4002  4001  4002     -     2     2      -       -      3
  gsm  4001     -     2     2     4001     2     1  4002  4001  4002     -     2     2      -       -      3
 ulaw  4001  4001     -     1     4001     2     1  4002  4001  4002     -     2     2      -       -      3
 alaw  4001  4001     1     -     4001     2     1  4002  4001  4002     -     2     2      -       -      3

g726aal2 4001 4001 2 2 - 2 1 4002 4001 4002 - 2 2 - - 3
adpcm 4001 4001 2 2 4001 - 1 4002 4001 4002 - 2 2 - - 3
slin 4000 4000 1 1 4000 1 - 4001 4000 4001 - 1 1 - - 2
lpc10 4001 4001 2 2 4001 2 1 - 4001 4002 - 2 2 - - 3
g729 4001 4001 2 2 4001 2 1 4002 - 4002 - 2 2 - - 3
speex 4001 4001 2 2 4001 2 1 4002 4001 - - 2 2 - - 3
ilbc - - - - - - - - - - - - - - - -
g726 8000 8000 4001 4001 8000 4001 4000 8001 8000 8001 - - 4001 - - 4002
g722 8000 8000 4001 4001 8000 4001 4000 8001 8000 8001 - 4001 - - - 1
siren7 - - - - - - - - - - - - - - - -
siren14 - - - - - - - - - - - - - - - -
slin16 12000 12000 8001 8001 12000 8001 8000 12001 12000 12001 - 8001 4000 - - -
radwa-laptop*CLI>

Your Asterisk thinks you’ve got ulaw as an available codec then. Maybe you’ve not enabled it for your sip peer or on the device itself.