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-rw-r--r--include/asterisk/channel.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/asterisk/channel.h b/include/asterisk/channel.h
index 45e94ce29..40d87c993 100644
--- a/include/asterisk/channel.h
+++ b/include/asterisk/channel.h
@@ -631,6 +631,7 @@ struct ast_channel_tech {
struct ast_channel *(* const requester)(const char *type, struct ast_format_cap *cap, const struct ast_assigned_ids *assignedids, const struct ast_channel *requestor, const char *addr, int *cause);
int (* const devicestate)(const char *device_number); /*!< Devicestate call back */
+ int (* const presencestate)(const char *presence_provider, char **subtype, char **message); /*!< Presencestate callback */
/*!
* \brief Start sending a literal DTMF digit