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-rw-r--r--configs/sip.conf.sample7
1 files changed, 4 insertions, 3 deletions
diff --git a/configs/sip.conf.sample b/configs/sip.conf.sample
index b6ad2dc66..4a08e638f 100644
--- a/configs/sip.conf.sample
+++ b/configs/sip.conf.sample
@@ -147,11 +147,12 @@ srvlookup=yes ; Enable DNS SRV lookups on outbound calls
;notifyringing = yes ; Notify subscriptions on RINGING state
;----------------------------------------- T.38 FAX PASSTHROUGH SUPPORT -----------------------
;
-; These settings are available in the [general] section as well as in device configurations
+; This setting is available in the [general] section as well as in device configurations.
+; Setting this to yes, enables T.38 fax (UDPTL) passthrough on SIP to SIP calls, provided
+; both parties have T38 support enabled in their Asterisk configuration (either general or
+; peer/user/friend sections)
;
; t38pt_udptl = yes ; Default false
-; t38pt_rtp = yes ; Default false
-; t38pt_tcp = yes ; Default false, not yet used
;
;----------------------------------------- OUTBOUND SIP REGISTRATIONS ------------------------
; Asterisk can register as a SIP user agent to a SIP proxy (provider)