How to enable PJSIP direct media?

Hello,
I’m using FreePBX 13 with Asterisk 14 and PJSIP driver.
For some reasons, I can’t enable directmedia for my phones inside office (all of them are the same network).

Could anyone can help me on this?
Thanks in advance.

Settings on my extensions:
allow : (alaw|ulaw|g722|g729)
allow_subscribe : true
allow_transfer : true
aors : 481
auth : 481-auth
bind_rtp_to_media_address : false
call_group :
callerid_privacy : allowed_not_screened
callerid_tag :
connected_line_method : invite
contact_acl :
context : from-internal
cos_audio : 0
cos_video : 0
device_state_busy_at : 0
direct_media : true
direct_media_glare_mitigation : none
direct_media_method : invite
disable_direct_media_on_nat : false

Asterisk’s log
[2016-11-15 15:41:19] VERBOSE[17939][C-00000009] pbx.c: Executing [[email protected]:1] Set(“PJSIP/682-00000010”, “__RINGTIMER=25”) in new stack
[2016-11-15 15:41:19] VERBOSE[17939][C-00000009] pbx.c: Executing [[email protected]:2] Macro(“PJSIP/682-00000010”, “exten-vm,481,481,0,0,0”) in new stack
[2016-11-15 15:41:19] VERBOSE[17939][C-00000009] pbx.c: Executing [[email protected]:3] Set(“PJSIP/682-00000010”, “__EXTTOCALL=481”) in new stack
[2016-11-15 15:41:19] VERBOSE[17939][C-00000009] pbx.c: Executing [[email protected]:4] Set(“PJSIP/682-00000010”, “__PICKUPMARK=481”) in new stack
[2016-11-15 15:41:19] VERBOSE[17939][C-00000009] pbx.c: Executing [[email protected]:6] Gosub(“PJSIP/682-00000010”, “sub-record-check,s,1(exten,481,dontcare)”) in new stack
[2016-11-15 15:41:19] VERBOSE[17939][C-00000009] pbx.c: Executing [[email protected]:1] NoOp(“PJSIP/682-00000010”, “Exten Recording Check between 682 and 481”) in new stack
[2016-11-15 15:41:19] VERBOSE[17939][C-00000009] pbx.c: Executing [[email protected]:16] Gosub(“PJSIP/682-00000010”, “recordcheck,1(dontcare,internal,481)”) in new stack
[2016-11-15 15:41:19] VERBOSE[17939][C-00000009] pbx.c: Executing [[email protected]:14] Macro(“PJSIP/682-00000010”, “dial-one,25,481”) in new stack
[2016-11-15 15:41:19] VERBOSE[17939][C-00000009] pbx.c: Executing [[email protected]:1] Set(“PJSIP/682-00000010”, “DEXTEN=481”) in new stack
[2016-11-15 15:41:19] VERBOSE[17939][C-00000009] pbx.c: Executing [[email protected]:2] ExecIf(“PJSIP/682-00000010”, “0?Set(EXTTOCALL=481)”) in new stack
[2016-11-15 15:41:19] VERBOSE[17939][C-00000009] pbx.c: Executing [[email protected]:2] Set(“PJSIP/682-00000010”, “DEVICES=481”) in new stack
[2016-11-15 15:41:19] VERBOSE[17939][C-00000009] pbx.c: Executing [[email protected]:7] Set(“PJSIP/682-00000010”, “THISDIAL=PJSIP/481”) in new stack
[2016-11-15 15:41:19] VERBOSE[17939][C-00000009] pbx.c: Executing [[email protected]:5] Set(“PJSIP/682-00000010”, “THISPART2=PJSIP/481”) in new stack
[2016-11-15 15:41:19] VERBOSE[17939][C-00000009] pbx.c: Executing [[email protected]:6] ExecIf(“PJSIP/682-00000010”, “0?Set(THISPART2=DAHDIIP/481)”) in new stack
[2016-11-15 15:41:19] VERBOSE[17939][C-00000009] pbx.c: Executing [[email protected]:7] Set(“PJSIP/682-00000010”, “NEWDIAL=PJSIP/481&”) in new stack
[2016-11-15 15:41:19] VERBOSE[17939][C-00000009] pbx.c: Executing [[email protected]:10] Set(“PJSIP/682-00000010”, “THISDIAL=PJSIP/481”) in new stack
[2016-11-15 15:41:19] VERBOSE[17939][C-00000009] pbx.c: Executing [[email protected]:10] NoOp(“PJSIP/682-00000010”, “Debug: Found PJSIP Destination PJSIP/481”) in new stack
[2016-11-15 15:41:19] VERBOSE[17939][C-00000009] pbx.c: Executing [[email protected]:13] Set(“PJSIP/682-00000010”, “THISDIAL=PJSIP/481/sip:[email protected]:15942&PJSIP/481/sip:[email protected]:59717;rinstance=712c1d3eebedb8a5”) in new stack
[2016-11-15 15:41:19] VERBOSE[17939][C-00000009] pbx.c: Executing [[email protected]:15] Set(“PJSIP/682-00000010”, “DSTRING=PJSIP/481/sip:[email protected]:15942&PJSIP/481/sip:[email protected]:59717;rinstance=712c1d3eebedb8a5&”) in new stack
[2016-11-15 15:41:19] VERBOSE[17939][C-00000009] pbx.c: Executing [[email protected]:19] Set(“PJSIP/682-00000010”, “DSTRING=PJSIP/481/sip:[email protected]:15942&PJSIP/481/sip:[email protected]:59717;rinstance=712c1d3eebedb8a5”) in new stack
[2016-11-15 15:41:19] VERBOSE[17939][C-00000009] pbx.c: Executing [[email protected]:1] Set(“PJSIP/682-00000010”, “DB(CALLTRACE/481)=682”) in new stack
[2016-11-15 15:41:19] VERBOSE[17939][C-00000009] pbx.c: Executing [[email protected]:45] Gosub(“PJSIP/682-00000010”, “sub-presencestate-display,s,1(481)”) in new stack
[2016-11-15 15:41:19] VERBOSE[17939][C-00000009] pbx.c: Executing [[email protected]:47] Set(“PJSIP/682-00000010”, “CONNECTEDLINE(num)=481”) in new stack
[2016-11-15 15:41:19] VERBOSE[17939][C-00000009] pbx.c: Executing [[email protected]:51] Dial(“PJSIP/682-00000010”, “PJSIP/481/sip:[email protected]:15942&PJSIP/481/sip:[email protected]:59717;rinstance=712c1d3eebedb8a5,25,Ib(func-apply-sipheaders^s^1)”) in new stack
[2016-11-15 15:41:19] VERBOSE[17939][C-00000009] app_stack.c: PJSIP/481-00000011 Internal Gosub(func-apply-sipheaders,s,1) start
[2016-11-15 15:41:19] VERBOSE[17939][C-00000009] pbx.c: Executing [[email protected]:1] NoOp(“PJSIP/481-00000011”, “Applying SIP Headers to channel”) in new stack
[2016-11-15 15:41:19] VERBOSE[17939][C-00000009] pbx.c: Executing [[email protected]:2] Set(“PJSIP/481-00000011”, “SIPHEADERKEYS=”) in new stack
[2016-11-15 15:41:19] VERBOSE[17939][C-00000009] pbx.c: Executing [[email protected]:3] While(“PJSIP/481-00000011”, “0”) in new stack
[2016-11-15 15:41:19] VERBOSE[17939][C-00000009] pbx.c: Executing [[email protected]:7] Return(“PJSIP/481-00000011”, “”) in new stack
[2016-11-15 15:41:19] VERBOSE[17939][C-00000009] app_stack.c: Spawn extension (from-internal, 481, 1) exited non-zero on ‘PJSIP/481-00000011’
[2016-11-15 15:41:19] VERBOSE[17939][C-00000009] app_stack.c: PJSIP/481-00000011 Internal Gosub(func-apply-sipheaders,s,1) complete GOSUB_RETVAL=
[2016-11-15 15:41:19] VERBOSE[17939][C-00000009] app_stack.c: PJSIP/481-00000012 Internal Gosub(func-apply-sipheaders,s,1) start
[2016-11-15 15:41:19] VERBOSE[17939][C-00000009] pbx.c: Executing [[email protected]:1] NoOp(“PJSIP/481-00000012”, “Applying SIP Headers to channel”) in new stack
[2016-11-15 15:41:19] VERBOSE[17939][C-00000009] pbx.c: Executing [[email protected]:2] Set(“PJSIP/481-00000012”, “SIPHEADERKEYS=”) in new stack
[2016-11-15 15:41:19] VERBOSE[17939][C-00000009] pbx.c: Executing [[email protected]:3] While(“PJSIP/481-00000012”, “0”) in new stack
[2016-11-15 15:41:19] VERBOSE[17939][C-00000009] pbx.c: Executing [[email protected]:7] Return(“PJSIP/481-00000012”, “”) in new stack
[2016-11-15 15:41:19] VERBOSE[17939][C-00000009] app_stack.c: Spawn extension (from-internal, 481, 1) exited non-zero on ‘PJSIP/481-00000012’
[2016-11-15 15:41:19] VERBOSE[17939][C-00000009] app_stack.c: PJSIP/481-00000012 Internal Gosub(func-apply-sipheaders,s,1) complete GOSUB_RETVAL=
[2016-11-15 15:41:19] VERBOSE[17939][C-00000009] app_dial.c: Called PJSIP/481/sip:[email protected]:15942
[2016-11-15 15:41:19] VERBOSE[17939][C-00000009] app_dial.c: Called PJSIP/481/sip:[email protected]:59717;rinstance=712c1d3eebedb8a5
[2016-11-15 15:41:19] VERBOSE[17939][C-00000009] app_dial.c: PJSIP/481-00000011 is ringing
[2016-11-15 15:41:20] VERBOSE[17939][C-00000009] app_dial.c: PJSIP/481-00000012 is ringing
[2016-11-15 15:41:23] VERBOSE[17939][C-00000009] app_dial.c: PJSIP/481-00000012 answered PJSIP/682-00000010
[2016-11-15 15:41:23] VERBOSE[17940][C-00000009] bridge_channel.c: Channel PJSIP/481-00000012 joined ‘simple_bridge’ basic-bridge <9d8c2e15-6ad1-4437-b012-1f899cd80cc7>
[2016-11-15 15:41:45] VERBOSE[17940][C-00000009] bridge_channel.c: Channel PJSIP/481-00000012 left ‘simple_bridge’ basic-bridge <9d8c2e15-6ad1-4437-b012-1f899cd80cc7>
[2016-11-15 15:41:45] VERBOSE[17939][C-00000009] pbx.c: Spawn extension (from-internal, 481, 2) exited non-zero on ‘PJSIP/682-00000010’