switch_assert 424 mod_freetdm/mod_freetdm.c switch_assert(channel != NULL); switch_assert 427 mod_freetdm/mod_freetdm.c switch_assert(tech_pvt != NULL); switch_assert 429 mod_freetdm/mod_freetdm.c switch_assert(tech_pvt->ftdmchan != NULL); switch_assert 446 mod_freetdm/mod_freetdm.c switch_assert(channel != NULL); switch_assert 449 mod_freetdm/mod_freetdm.c switch_assert(tech_pvt != NULL); switch_assert 1118 mod_freetdm/mod_freetdm.c switch_assert(status == FTDM_SUCCESS);