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-rw-r--r--configs/sip.conf.sample8
1 files changed, 6 insertions, 2 deletions
diff --git a/configs/sip.conf.sample b/configs/sip.conf.sample
index a2d25f261..a1ed83cd2 100644
--- a/configs/sip.conf.sample
+++ b/configs/sip.conf.sample
@@ -533,9 +533,13 @@ srvlookup=yes ; Enable DNS SRV lookups on outbound calls
; ; send 400 byte T.38 FAX packets to it.
;
; FAX detection will cause the SIP channel to jump to the 'fax' extension (if it exists)
-; when a CNG tone is detected on an incoming call.
+; based one or more events being detected. The events that can be detected are an incoming
+; CNG tone or an incoming T.38 re-INVITE request.
;
-; faxdetect = yes ; Default false
+; faxdetect = yes ; Default 'no', 'yes' enables both CNG and T.38 detection
+; faxdetect = cng ; Enables only CNG detection
+; faxdetect = t38 ; Enables only T.38 detection
+; faxdetect = both ; Enables both CNG and T.38 detection (same as 'yes')
;
;----------------------------------------- OUTBOUND SIP REGISTRATIONS ------------------------
; Asterisk can register as a SIP user agent to a SIP proxy (provider)