SWITCH_DECLARE(switch_status_t) switch_channel_init(switch_channel_t *channel, switch_core_session_t *session, switch_channel_state_t state,
switch_channel_flag_t flag);
+/*!
+ \brief Takes presence_data_cols as a parameter or as a channel variable and copies them to channel profile variables
+ \param channel the channel on which to set the channel profile variables
+ \param presence_data_cols is a colon separated list of channel variables to copy to channel profile variables
+ */
+SWITCH_DECLARE(void) switch_channel_set_presence_data_vals(switch_channel_t *channel, const char *presence_data_cols);
+
/*!
\brief Fire A presence event for the channel
\param channel the channel to initilize