How to define an Asterisk module by function name

Asterisk has a nice function PITCH_SHIFT, which can modify caller’s/callee’s voice. Let’s imagine, we have a system without autoloaded modules, and we need to find which module provides this function.

1. Go to the astmoddir (I have a Debian system):

cd /usr/lib/asterisk/modules

2. Find.

root@voiprouter1:/usr/lib/asterisk/modules# grep PITCH *
Binary file func_pitchshift.so matches
root@voiprouter1:/usr/lib/asterisk/modules#

3. We can also find the dependencies:

root@voiprouter1:/usr/lib/asterisk/modules# ldd func_pitchshift.so
linux-gate.so.1 => (0xb776e000)
libpthread.so.0 => /lib/i386-linux-gnu/i686/cmov/libpthread.so.0 (0xb7747000)
libc.so.6 => /lib/i386-linux-gnu/i686/cmov/libc.so.6 (0xb75e4000)
/lib/ld-linux.so.2 (0xb776f000)

4. That’s it! Thanks to meral.

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