res_pjsip_dtmf_info.c: Add 'INFO' to Allow header.

Fixes #376

diff --git a/res/res_pjsip_dtmf_info.c b/res/res_pjsip_dtmf_info.c
index bbc0640661dbc46790c638f1ff9055284b280429..df7adf2697b1355bea4f2522e97e00e5009eefe0 100644 (file)
--- a/res/res_pjsip_dtmf_info.c
+++ b/res/res_pjsip_dtmf_info.c
@@ -163,6 +163,13 @@ static struct ast_sip_session_supplement dtmf_info_supplement = {
 
 static int load_module(void)
 {
+       static const pj_str_t STR_INFO = { "INFO", 4 };
+
+       if (pjsip_endpt_add_capability(ast_sip_get_pjsip_endpoint(),
+                       NULL, PJSIP_H_ALLOW, NULL, 1, &STR_INFO) != PJ_SUCCESS) {
+               return AST_MODULE_LOAD_DECLINE;
+       }
+
        ast_sip_session_register_supplement(&dtmf_info_supplement);
        return AST_MODULE_LOAD_SUCCESS;
 }