Asterisk 13.29.2 is coming up on two years beyond end of life, and three years since the end of mainstream support.
DAHDI and PRI support are irrelevant to SRTP, but the SIP channel driver is.
I believe there can be problems with SRTP modules, if you don’t have chan_pjsip loaded, and you should be using that, rather than chan_sip, as the latter will be removed in next year’s release.
None of the messages you have provided points to libsrtp being missing.
If res_srtp.so is present, run ldd against it to see if it has missing load time dependencies. If it not present, and you built asterisk yourself, rum make menuselect, check it is enabled, and, otherwise, check the listed missing dependencies.
find / -executable -type f | while read line; do ldd $line; done | grep libsrtp.so*
ldd: salió con estado de salida desconocido (139)
ldd: salió con estado de salida desconocido (139)
ldd: salió con estado de salida desconocido (139)
The configure script seems to be able to accept both libsrtp and libsrtp2, but none of the diagnostics you have provided so far mention libsrtp. I suspect the menuselect missing dependency list will, but you haven’[t provided that.
