OUTNUM is zeroed

[pnepus]

hello
i have problem if module freepbx-trunk-balancing is enabled (even if no Balanced Trunk created)
we use custom trunk like this

Custom Dial String:
Local/$OUTNUM$@from-trunk

after test call from 1129 to 89059341823
OUTNUM is zeroed

log:

[2016-12-07 15:32:58] VERBOSE[17487][C-0003c110] res_agi.c: > trunkbalance.php,2,89059341823: Running SQL Command SELECT * FROM trunks WHERE trunkid='2'
[2016-12-07 15:32:58] VERBOSE[17487][C-0003c110] res_agi.c: > trunkbalance.php,2,89059341823: Connected to MySQL database OK.
[2016-12-07 15:32:58] VERBOSE[17487][C-0003c110] res_agi.c: > trunkbalance.php,2,89059341823: Selected database OK.
[2016-12-07 15:32:58] VERBOSE[17487][C-0003c110] res_agi.c: -- trunkbalance.php,2,89059341823: No balancing rules are defined for this trunk
[2016-12-07 15:32:58] VERBOSE[17487][C-0003c110] res_agi.c: -- <SIP/1129-0005df27>AGI Script trunkbalance.php completed, returning 0
.
.

[2016-12-07 15:32:58] VERBOSE[17487][C-0003c110] pbx.c: -- Executing [s@macro-dialout-trunk:14] Set("SIP/1129-0005df27", "OUTNUM=") in new stack
[2016-12-07 15:32:58] VERBOSE[17487][C-0003c110] pbx.c: -- Executing [s@macro-dialout-trunk:15] Set("SIP/1129-0005df27", "custom=SIP/PROTEI-3110000-OUT") in new stack
.
.
[2016-12-07 15:32:58] VERBOSE[17487][C-0003c110] pbx.c: -- Executing [s@macro-dialout-trunk:22] GotoIf("SIP/1129-0005df27", "0?customtrunk") in new stack
[2016-12-07 15:32:58] VERBOSE[17487][C-0003c110] pbx.c: -- Executing [s@macro-dialout-trunk:23] Dial("SIP/1129-0005df27", "SIP/PROTEI-3110000-OUT/,300,Tt") in new stack
[2016-12-07 15:32:58] VERBOSE[17487][C-0003c110] app_dial.c: -- Called SIP/PROTEI-3110000-OUT/
[2016-12-07 15:32:58] VERBOSE[5751][C-0003c110] chan_sip.c: -- Got SIP response 484 "Address Incomplete" back from 10.125.183.4:5060
[2016-12-07 15:32:58] VERBOSE[17487][C-0003c110] app_dial.c: == Everyone is busy/congested at this time (1:0/0/1)
[2016-12-07 15:32:58] VERBOSE[17487][C-0003c110] pbx.c: -- Executing [s@macro-dialout-trunk:24] NoOp("SIP/1129-0005df27", "Dial failed for some reason with DIALSTATUS = CHANUNAVAIL and HANGUPCAUSE = 2

same call when module freepbx-trunk-balancing is disabled

.
.
[2016-12-07 15:49:26] VERBOSE[20759][C-0003c237] pbx.c: -- Executing [s@macro-dialout-trunk:12] GosubIf("Local/1129@from-trunk-00010813;1", "0?sub-flp-2,s,1()") in new stack
[2016-12-07 15:49:26] VERBOSE[20759][C-0003c237] pbx.c: -- Executing [s@macro-dialout-trunk:13] Set("Local/1129@from-trunk-00010813;1", "OUTNUM=89059341823") in new stack
[2016-12-07 15:49:26] VERBOSE[20759][C-0003c237] pbx.c: -- Executing [s@macro-dialout-trunk:14] Set("Local/1129@from-trunk-00010813;1", "custom=SIP/PROTEI-3110000-OUT") in new stack
.
.
[2016-12-07 15:49:26] VERBOSE[20759][C-0003c237] pbx.c: -- Executing [s@macro-dialout-trunk:21] GotoIf("Local/1129@from-trunk-00010813;1", "0?customtrunk") in new stack
[2016-12-07 15:49:26] VERBOSE[20759][C-0003c237] pbx.c: -- Executing [s@macro-dialout-trunk:22] Dial("Local/1129@from-trunk-00010813;1", "SIP/PROTEI-3110000-OUT/89059341823,300,Tt") in new stack
[2016-12-07 15:49:26] VERBOSE[20759][C-0003c237] netsock2.c: == Using SIP RTP TOS bits 184
[2016-12-07 15:49:26] VERBOSE[20759][C-0003c237] netsock2.c: == Using SIP RTP CoS mark 5
[2016-12-07 15:49:26] VERBOSE[20759][C-0003c237] app_dial.c: -- Called SIP/PROTEI-3110000-OUT/89059341823