# ChanSpy problem **URL:** \ **Category:** Asterisk Support\ **Created:** [December 26, 2009, 9:53am UTC](https://community.asterisk.org/t/chanspy-problem/30095 "2009-12-26T09:53:42Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![system](https://global.discourse-cdn.com/asterisk/original/2X/4/475d0c889911cfb84ac4881ad6df8b523e3f9105.png) [@system](https://community.asterisk.org/u/system)\ **Post date:** [December 26, 2009, 9:53am UTC](https://community.asterisk.org/t/chanspy-problem/30095/1 "2009-12-26T09:53:42Z")
Hi, ChanSpy doesn’t work on my system. I hear just one channel at a time (the caller or the calee). About the system: [code]\>uname -a Linux pbx.provider.tld 2.6.18-164.el5 #1 SMP Thu Sep 3 03:33:56 EDT 2009 i686 i686 i386 GNU/Linux > cat /etc/redhat-release > CentOS release 5.4 (Final) > asterisk -V > Asterisk 1.4.26.3[/code] Elastix 1.6-13 FreePBX 2.6.0.0 One of the extensions: `[152] deny=0.0.0.0/0.0.0.0 secret=XXXXXX dtmfmode=rfc2833 canreinvite=no context=from-internal host=dynamic type=friend nat=yes port=5060 qualify=yes callgroup= pickupgroup= dial=SIP/152 accountcode= mailbox=152@device permit=0.0.0.0/0.0.0.0 callerid=device <152> call-limit=50` The ChanSpy: `[app-chanspy] include => app-chanspy-custom exten => 555,1,Macro(user-callerid,) exten => 555,n,Answer exten => 555,n,Wait(1) exten => 555,n,ChanSpy() exten => 555,n,Hangup` Calling to ChanSpy gives: ```auto == Spying on channel SIP/152-09891b98 ``` During an active call i have: `pbx*CLI> core show channels Channel Location State Application(Data) SIP/155-b6c081b0 555@from-internal:4 Up ChanSpy() SIP/152-09891b98 (None) Up AppDial((Outgoing Line)) SIP/provider-b6c004b s@macro-dial:7 Up Dial(SIP/145&SIP/146&SIP 3 active channels 2 active call` Finaly i hear just one channel (SIP/152-09891b98 in this case). In Elastix 1.5.2 it was all ok: i heard the both channels. ---
**Author:** ![bira\_more](https://avatars.discourse-cdn.com/v4/letter/b/bbce88/32.png) [@bira\_more](https://community.asterisk.org/u/bira_more)\ **Post date:** [December 26, 2009, 10:32pm UTC](https://community.asterisk.org/t/chanspy-problem/30095/2 "2009-12-26T22:32:45Z")
I had to play some staff to both sides simultaneously, and I played what I want to play to every channel. I suppose same is for listening. ---
**Author:** ![system](https://global.discourse-cdn.com/asterisk/original/2X/4/475d0c889911cfb84ac4881ad6df8b523e3f9105.png) [@system](https://community.asterisk.org/u/system)\ **Post date:** [December 30, 2009, 8:09am UTC](https://community.asterisk.org/t/chanspy-problem/30095/3 "2009-12-30T08:09:34Z")
I think i’ve found the problem: [issues.asterisk.org/view.php?id=16167](https://issues.asterisk.org/view.php?id=16167) . But is this actual for my version of asterisk ? ---
**Author:** ![bira\_more](https://avatars.discourse-cdn.com/v4/letter/b/bbce88/32.png) [@bira\_more](https://community.asterisk.org/u/bira_more)\ **Post date:** [December 30, 2009, 2:08pm UTC](https://community.asterisk.org/t/chanspy-problem/30095/4 "2009-12-30T14:08:09Z")
Simplest way is to modify code a little rebuild asterisk and check what happens: ```auto //if (ast_test_flag(chan, OPTION_READONLY)) { /* Option 'o' was set, so don't mix channel audio */ // f = ast_audiohook_read_frame(&csth->spy_audiohook, samples, AST_AUDIOHOOK_DIRECTION_READ, AST_FORMAT_SLINEAR); // } else { f = ast_audiohook_read_frame(&csth->spy_audiohook, samples, AST_AUDIOHOOK_DIRECTION_BOTH, AST_FORMAT_SLINEAR); // } ``` 4 comments and you will see what happens.