Dead Air calls, like around 40% or more

[davesdatasystems]

I know this might be a setting issue

I also contacted my VOIP provider, they say everything is good on their end and they are not trying any funny stuff , i would like to see if maybe, MAYBE, it is not the voip provider (ie, the provider is Airespring.

But anyone, just way to many dead air calls. Some info below.

Here is the asterix info

Code: Select all

[Oct  5 15:55:50]     -- Executing [8368@default:1] AGI("SIP/AIRESPRING-00003140", "agi://127.0.0.1:4577/call_log") in new stack
[Oct  5 15:55:50]   == Spawn extension (default, 919122646400, 2) exited non-zero on 'Local/919122646400@default-00004145;2'
[Oct  5 15:55:50]     -- Executing [h@default:1] AGI("Local/919122646400@default-00004145;2", "agi://127.0.0.1:4577/call_log--HVcauses--PRI-----NODEBUG-----16-----ANSWER-----6-----0-----SIP 200 OK)") in new stack
[Oct  5 15:55:50]     -- AGI Script Executing Application: (EXEC) Options: (Set(_CAMPCUST=DANRI))
[Oct  5 15:55:50]     -- <SIP/AIRESPRING-00003140>AGI Script agi://127.0.0.1:4577/call_log completed, returning 0
[Oct  5 15:55:50]     -- Executing [8368@default:2] AGI("SIP/AIRESPRING-00003140", "agi-VDAD_ALL_outbound.agi,NORMAL-----LB-----V0051555440000822770") in new stack
[Oct  5 15:55:50]     -- Launched AGI Script /usr/share/asterisk/agi-bin/agi-VDAD_ALL_outbound.agi
[Oct  5 15:55:50]   == Manager 'sendcron' logged off from 127.0.0.1
[Oct  5 15:55:51]     -- <SIP/AIRESPRING-00003140>AGI Script agi-VDAD_ALL_outbound.agi completed, returning 0
[Oct  5 15:55:51]     -- Executing [045*003*211*150*8600057@default:1] Goto("SIP/AIRESPRING-00003140", "default,8600057,1") in new stack
[Oct  5 15:55:51]     -- Goto (default,8600057,1)
[Oct  5 15:55:51]     -- Executing [8600057@default:1] MeetMe("SIP/AIRESPRING-00003140", "8600057,F") in new stack
[Oct  5 15:55:51]   == Manager 'sendcron' logged off from 127.0.0.1
[Oct  5 15:55:51]   == Manager 'sendcron' logged on from 127.0.0.1
[Oct  5 15:55:51]     -- Called 58600057@default
[Oct  5 15:55:51]     -- Executing [58600057@default:1] MeetMe("Local/58600057@default-0000414a;2", "8600057,Fmq") in new stack
[Oct  5 15:55:51]     -- Local/58600057@default-0000414a;1 answered
[Oct  5 15:55:51]     -- Executing [8309@default:1] Answer("Local/58600057@default-0000414a;1", "") in new stack
[Oct  5 15:55:51]     -- Executing [8309@default:2] Monitor("Local/58600057@default-0000414a;1", "wav,20201005-155551_9122646400_114") in new stack
[Oct  5 15:55:51]     -- Executing [8309@default:3] Wait("Local/58600057@default-0000414a;1", "3600") in new stack
[Oct  5 15:55:51]   == Manager 'sendcron' logged off from 127.0.0.1
[Oct  5 15:55:51]     -- <Local/919725569343@default-0000413e;1>AGI Script agi://127.0.0.1:4577/call_log--HVcauses--PRI-----NODEBUG-----16--------------------) completed, returning 0
[Oct  5 15:55:51]        > 0x55f16012bed0 -- Strict RTP learning complete - Locking on source address 173.245.32.21:37652
[Oct  5 15:55:51]   == Manager 'sendcron' logged off from 127.0.0.1
[Oct  5 15:55:51]     -- <Local/919122646400@default-00004145;2>AGI Script agi://127.0.0.1:4577/call_log--HVcauses--PRI-----NODEBUG-----16-----ANSWER-----6-----0-----SIP 200 OK) completed, returning 0
[Oct  5 15:55:51]   == Spawn extension (default, 138368, 2) exited non-zero on 'Local/919122646400@default-00004145;1'
[Oct  5 15:55:51] WARNING[11985][C-00007368]: func_hangupcause.c:140 hangupcause_read: Unable to find information for channel
[Oct  5 15:55:51]     -- Executing [h@default:1] AGI("Local/919122646400@default-00004145;1", "agi://127.0.0.1:4577/call_log--HVcauses--PRI-----NODEBUG-----16--------------------)") in new stack
[Oct  5 15:55:52]     -- SIP/AIRESPRING-0000313b answered Local/917136324264@default-0000413b;2
[Oct  5 15:55:52]     -- Channel SIP/AIRESPRING-0000313b joined 'simple_bridge' basic-bridge <c89b8bb0-dd1a-4131-9a3b-ea77e123e827>
[Oct  5 15:55:52]     -- Channel Local/917136324264@default-0000413b;2 joined 'simple_bridge' basic-bridge <c89b8bb0-dd1a-4131-9a3b-ea77e123e827>
[Oct  5 15:55:52]     -- Local/917136324264@default-0000413b;1 answered
[Oct  5 15:55:52]     -- Executing [138368@default:1] AGI("Local/917136324264@default-0000413b;1", "agi-VDAD_local_optimize.agi,V0051555260000811482") in new stack
[Oct  5 15:55:52]     -- Launched AGI Script /usr/share/asterisk/agi-bin/agi-VDAD_local_optimize.agi
[Oct  5 15:55:52]   == Manager 'sendcron' logged off from 127.0.0.1
[Oct  5 15:55:52]   == Manager 'sendcron' logged on from 127.0.0.1
[Oct  5 15:55:52]     -- Called 918065499552@default
[Oct  5 15:55:52]     -- Executing [918065499552@default:1] AGI("Local/918065499552@default-0000414b;2", "agi://127.0.0.1:4577/call_log") in new stack
[Oct  5 15:55:52]     -- AGI Script Executing Application: (EXEC) Options: (Set(_CAMPCUST=DANRI))
[Oct  5 15:55:52]     -- <Local/918065499552@default-0000414b;2>AGI Script agi://127.0.0.1:4577/call_log completed, returning 0
[Oct  5 15:55:52]     -- Executing [918065499552@default:2] Dial("Local/918065499552@default-0000414b;2", "SIP/18065499552@AIRESPRING,60,RTto") in new stack
[Oct  5 15:55:52]   == Using SIP RTP CoS mark 5
[Oct  5 15:55:52]     -- Called SIP/18065499552@AIRESPRING
[Oct  5 15:55:52]   == Manager 'sendcron' logged on from 127.0.0.1
[Oct  5 15:55:52]     -- Local/918065499552@default-0000414b;1 is ringing
[Oct  5 15:55:52]     -- Called 917137924963@default
[Oct  5 15:55:52]     -- Executing [917137924963@default:1] AGI("Local/917137924963@default-0000414c;2", "agi://127.0.0.1:4577/call_log") in new stack
[Oct  5 15:55:52]     -- AGI Script Executing Application: (EXEC) Options: (Set(_CAMPCUST=DANRI))
[Oct  5 15:55:52]     -- <Local/917137924963@default-0000414c;2>AGI Script agi://127.0.0.1:4577/call_log completed, returning 0
[Oct  5 15:55:52]     -- Executing [917137924963@default:2] Dial("Local/917137924963@default-0000414c;2", "SIP/17137924963@AIRESPRING,60,RTto") in new stack
[Oct  5 15:55:52]   == Using SIP RTP CoS mark 5
[Oct  5 15:55:52]     -- Called SIP/17137924963@AIRESPRING
[Oct  5 15:55:52]     -- Local/917137924963@default-0000414c;1 is ringing
[Oct  5 15:55:52]   == Manager 'sendcron' logged on from 127.0.0.1
[Oct  5 15:55:52]     -- Called 917026161823@default
[Oct  5 15:55:52]     -- Executing [917026161823@default:1] AGI("Local/917026161823@default-0000414d;2", "agi://127.0.0.1:4577/call_log") in new stack
[Oct  5 15:55:52]     -- AGI Script Executing Application: (EXEC) Options: (Set(_CAMPCUST=DANRI))
[Oct  5 15:55:52]     -- <Local/917026161823@default-0000414d;2>AGI Script agi://127.0.0.1:4577/call_log completed, returning 0
[Oct  5 15:55:52]     -- Executing [917026161823@default:2] Dial("Local/917026161823@default-0000414d;2", "SIP/17026161823@AIRESPRING,60,RTto") in new stack
[Oct  5 15:55:52]   == Using SIP RTP CoS mark 5
[Oct  5 15:55:52]     -- Called SIP/17026161823@AIRESPRING
[Oct  5 15:55:52]     -- Local/917026161823@default-0000414d;1 is ringing
[Oct  5 15:55:52]     -- <Local/917136324264@default-0000413b;1>AGI Script agi-VDAD_local_optimize.agi completed, returning 0
[Oct  5 15:55:52]     -- Executing [138368@default:2] Wait("Local/917136324264@default-0000413b;1", "2") in new stack
[Oct  5 15:55:52]   == Manager 'sendcron' logged on from 127.0.0.1
[Oct  5 15:55:52]     -- Channel SIP/AIRESPRING-0000313b left 'simple_bridge' basic-bridge <c89b8bb0-dd1a-4131-9a3b-ea77e123e827>
[Oct  5 15:55:52]     -- Executing [8368@default:1] AGI("SIP/AIRESPRING-0000313b", "agi://127.0.0.1:4577/call_log") in new stack
[Oct  5 15:55:52]     -- Channel Local/917136324264@default-0000413b;2 left 'simple_bridge' basic-bridge <c89b8bb0-dd1a-4131-9a3b-ea77e123e827>
[Oct  5 15:55:52]   == Spawn extension (default, 917136324264, 2) exited non-zero on 'Local/917136324264@default-0000413b;2'
[Oct  5 15:55:52]     -- Executing [h@default:1] AGI("Local/917136324264@default-0000413b;2", "agi://127.0.0.1:4577/call_log--HVcauses--PRI-----NODEBUG-----16-----ANSWER-----26-----0-----SIP 200 OK)") in new stack
[Oct  5 15:55:52]     -- AGI Script Executing Application: (EXEC) Options: (Set(_CAMPCUST=DANRI))
[Oct  5 15:55:52]     -- <SIP/AIRESPRING-0000313b>AGI Script agi://127.0.0.1:4577/call_log completed, returning 0
[Oct  5 15:55:52]     -- Executing [8368@default:2] AGI("SIP/AIRESPRING-0000313b", "agi-VDAD_ALL_outbound.agi,NORMAL-----LB-----V0051555260000811482") in new stack
[Oct  5 15:55:52]     -- Launched AGI Script /usr/share/asterisk/agi-bin/agi-VDAD_ALL_outbound.agi
[Oct  5 15:55:52]   == Manager 'sendcron' logged off from 127.0.0.1



here is my dial plan and account entry

Code: Select all

[b]Account Entry[/b]
[AIRESPRING]
type=friend
host=173.245.32.23
canreinvite=no
insecure=port,invite
qualify=yes
disallow=all
allow=ulaw
allow=alaw
dtmfmode=rfc2833
context=trunkinbound

[b]Dial Plan[/b]
exten => _91NXXNXXXXXX,1,AGI(agi://127.0.0.1:4577/call_log)
exten => _91NXXNXXXXXX,n,Dial(SIP/${EXTEN:1}@AIRESPRING,60,RTto)
exten => _91NXXNXXXXXX,n,Hangup()



So i am hoping that someone much smarter than me (ie most of the people here, if not all, could help out on this.

[mflorell]

First step, try a different provider, especially since I see you are using AIRESPRING.

Second step, bombard Airespring with examples of dead air calls.

Third step, try a different provider, and let Airespring know that you are trying a different provider.

This looks like FAS(False Answer Supervision), it is illegal for carriers to do, but they do it anyway because it is difficult to prove. I even did a presentation on it at Astricon last year,
http://www.vicidial.org/presentations/M ... ingFAS.pdf

We have run into this with some providers recently, it is a carrier issue, and some aggregators like Airespring use downstream providers that will send out dead air answers for a portion of their terminated calls.

[davesdatasystems]

Is there a VOIP provider that you would recommend?

[kashinc]

bump! I also have 40% or more Dead air and the carriers are variable...

[mflorell]

A good first carrier to try is Vitelity/Voyant. I'd also suggest contacting several other carriers to see if they will take your auto-dialer traffic.

[frequency]

Dead air has been around for ages over dialer products. The problem may be in your traffic type. Answer the following quick questions.
Are you using 8369?
Do you use multiple caller ids? Are they spoofed or are you good folk out there using valid and reachable caller ids.
What's your ACD look like?
Are you using Vici 9.0?

AireSpring downstream vendors for SD aren't great although they push traffic to ATT, VZ. Nobody likes 8369 sorta traffic (High SDP). If you're using a static CID, it's probably being blocked if it's reputation is bad and we do too. People tend not to answer or reply once they hear the calls too should they hear Vicidial Conference tone they hear on connecting with agent.

One possibility is to get your CIDs, with good reputation and extend your calls and ultimately it would help go to better carrier's who would like to take your traffic and not block it. This usually results in better connectivity and far less dead air. You can try us by sending me in a PM since we're terminating to most tier1s.

I know this might be a setting issue

I also contacted my VOIP provider, they say everything is good on their end and they are not trying any funny stuff , i would like to see if maybe, MAYBE, it is not the voip provider (ie, the provider is Airespring.

But anyone, just way to many dead air calls. Some info below.

Here is the asterix info

Code: Select all

[Oct  5 15:55:50]     -- Executing [8368@default:1] AGI("SIP/AIRESPRING-00003140", "agi://127.0.0.1:4577/call_log") in new stack
[Oct  5 15:55:50]   == Spawn extension (default, 919122646400, 2) exited non-zero on 'Local/919122646400@default-00004145;2'
[Oct  5 15:55:50]     -- Executing [h@default:1] AGI("Local/919122646400@default-00004145;2", "agi://127.0.0.1:4577/call_log--HVcauses--PRI-----NODEBUG-----16-----ANSWER-----6-----0-----SIP 200 OK)") in new stack
[Oct  5 15:55:50]     -- AGI Script Executing Application: (EXEC) Options: (Set(_CAMPCUST=DANRI))
[Oct  5 15:55:50]     -- <SIP/AIRESPRING-00003140>AGI Script agi://127.0.0.1:4577/call_log completed, returning 0
[Oct  5 15:55:50]     -- Executing [8368@default:2] AGI("SIP/AIRESPRING-00003140", "agi-VDAD_ALL_outbound.agi,NORMAL-----LB-----V0051555440000822770") in new stack
[Oct  5 15:55:50]     -- Launched AGI Script /usr/share/asterisk/agi-bin/agi-VDAD_ALL_outbound.agi
[Oct  5 15:55:50]   == Manager 'sendcron' logged off from 127.0.0.1
[Oct  5 15:55:51]     -- <SIP/AIRESPRING-00003140>AGI Script agi-VDAD_ALL_outbound.agi completed, returning 0
[Oct  5 15:55:51]     -- Executing [045*003*211*150*8600057@default:1] Goto("SIP/AIRESPRING-00003140", "default,8600057,1") in new stack
[Oct  5 15:55:51]     -- Goto (default,8600057,1)
[Oct  5 15:55:51]     -- Executing [8600057@default:1] MeetMe("SIP/AIRESPRING-00003140", "8600057,F") in new stack
[Oct  5 15:55:51]   == Manager 'sendcron' logged off from 127.0.0.1
[Oct  5 15:55:51]   == Manager 'sendcron' logged on from 127.0.0.1
[Oct  5 15:55:51]     -- Called 58600057@default
[Oct  5 15:55:51]     -- Executing [58600057@default:1] MeetMe("Local/58600057@default-0000414a;2", "8600057,Fmq") in new stack
[Oct  5 15:55:51]     -- Local/58600057@default-0000414a;1 answered
[Oct  5 15:55:51]     -- Executing [8309@default:1] Answer("Local/58600057@default-0000414a;1", "") in new stack
[Oct  5 15:55:51]     -- Executing [8309@default:2] Monitor("Local/58600057@default-0000414a;1", "wav,20201005-155551_9122646400_114") in new stack
[Oct  5 15:55:51]     -- Executing [8309@default:3] Wait("Local/58600057@default-0000414a;1", "3600") in new stack
[Oct  5 15:55:51]   == Manager 'sendcron' logged off from 127.0.0.1
[Oct  5 15:55:51]     -- <Local/919725569343@default-0000413e;1>AGI Script agi://127.0.0.1:4577/call_log--HVcauses--PRI-----NODEBUG-----16--------------------) completed, returning 0
[Oct  5 15:55:51]        > 0x55f16012bed0 -- Strict RTP learning complete - Locking on source address 173.245.32.21:37652
[Oct  5 15:55:51]   == Manager 'sendcron' logged off from 127.0.0.1
[Oct  5 15:55:51]     -- <Local/919122646400@default-00004145;2>AGI Script agi://127.0.0.1:4577/call_log--HVcauses--PRI-----NODEBUG-----16-----ANSWER-----6-----0-----SIP 200 OK) completed, returning 0
[Oct  5 15:55:51]   == Spawn extension (default, 138368, 2) exited non-zero on 'Local/919122646400@default-00004145;1'
[Oct  5 15:55:51] WARNING[11985][C-00007368]: func_hangupcause.c:140 hangupcause_read: Unable to find information for channel
[Oct  5 15:55:51]     -- Executing [h@default:1] AGI("Local/919122646400@default-00004145;1", "agi://127.0.0.1:4577/call_log--HVcauses--PRI-----NODEBUG-----16--------------------)") in new stack
[Oct  5 15:55:52]     -- SIP/AIRESPRING-0000313b answered Local/917136324264@default-0000413b;2
[Oct  5 15:55:52]     -- Channel SIP/AIRESPRING-0000313b joined 'simple_bridge' basic-bridge <c89b8bb0-dd1a-4131-9a3b-ea77e123e827>
[Oct  5 15:55:52]     -- Channel Local/917136324264@default-0000413b;2 joined 'simple_bridge' basic-bridge <c89b8bb0-dd1a-4131-9a3b-ea77e123e827>
[Oct  5 15:55:52]     -- Local/917136324264@default-0000413b;1 answered
[Oct  5 15:55:52]     -- Executing [138368@default:1] AGI("Local/917136324264@default-0000413b;1", "agi-VDAD_local_optimize.agi,V0051555260000811482") in new stack
[Oct  5 15:55:52]     -- Launched AGI Script /usr/share/asterisk/agi-bin/agi-VDAD_local_optimize.agi
[Oct  5 15:55:52]   == Manager 'sendcron' logged off from 127.0.0.1
[Oct  5 15:55:52]   == Manager 'sendcron' logged on from 127.0.0.1
[Oct  5 15:55:52]     -- Called 918065499552@default
[Oct  5 15:55:52]     -- Executing [918065499552@default:1] AGI("Local/918065499552@default-0000414b;2", "agi://127.0.0.1:4577/call_log") in new stack
[Oct  5 15:55:52]     -- AGI Script Executing Application: (EXEC) Options: (Set(_CAMPCUST=DANRI))
[Oct  5 15:55:52]     -- <Local/918065499552@default-0000414b;2>AGI Script agi://127.0.0.1:4577/call_log completed, returning 0
[Oct  5 15:55:52]     -- Executing [918065499552@default:2] Dial("Local/918065499552@default-0000414b;2", "SIP/18065499552@AIRESPRING,60,RTto") in new stack
[Oct  5 15:55:52]   == Using SIP RTP CoS mark 5
[Oct  5 15:55:52]     -- Called SIP/18065499552@AIRESPRING
[Oct  5 15:55:52]   == Manager 'sendcron' logged on from 127.0.0.1
[Oct  5 15:55:52]     -- Local/918065499552@default-0000414b;1 is ringing
[Oct  5 15:55:52]     -- Called 917137924963@default
[Oct  5 15:55:52]     -- Executing [917137924963@default:1] AGI("Local/917137924963@default-0000414c;2", "agi://127.0.0.1:4577/call_log") in new stack
[Oct  5 15:55:52]     -- AGI Script Executing Application: (EXEC) Options: (Set(_CAMPCUST=DANRI))
[Oct  5 15:55:52]     -- <Local/917137924963@default-0000414c;2>AGI Script agi://127.0.0.1:4577/call_log completed, returning 0
[Oct  5 15:55:52]     -- Executing [917137924963@default:2] Dial("Local/917137924963@default-0000414c;2", "SIP/17137924963@AIRESPRING,60,RTto") in new stack
[Oct  5 15:55:52]   == Using SIP RTP CoS mark 5
[Oct  5 15:55:52]     -- Called SIP/17137924963@AIRESPRING
[Oct  5 15:55:52]     -- Local/917137924963@default-0000414c;1 is ringing
[Oct  5 15:55:52]   == Manager 'sendcron' logged on from 127.0.0.1
[Oct  5 15:55:52]     -- Called 917026161823@default
[Oct  5 15:55:52]     -- Executing [917026161823@default:1] AGI("Local/917026161823@default-0000414d;2", "agi://127.0.0.1:4577/call_log") in new stack
[Oct  5 15:55:52]     -- AGI Script Executing Application: (EXEC) Options: (Set(_CAMPCUST=DANRI))
[Oct  5 15:55:52]     -- <Local/917026161823@default-0000414d;2>AGI Script agi://127.0.0.1:4577/call_log completed, returning 0
[Oct  5 15:55:52]     -- Executing [917026161823@default:2] Dial("Local/917026161823@default-0000414d;2", "SIP/17026161823@AIRESPRING,60,RTto") in new stack
[Oct  5 15:55:52]   == Using SIP RTP CoS mark 5
[Oct  5 15:55:52]     -- Called SIP/17026161823@AIRESPRING
[Oct  5 15:55:52]     -- Local/917026161823@default-0000414d;1 is ringing
[Oct  5 15:55:52]     -- <Local/917136324264@default-0000413b;1>AGI Script agi-VDAD_local_optimize.agi completed, returning 0
[Oct  5 15:55:52]     -- Executing [138368@default:2] Wait("Local/917136324264@default-0000413b;1", "2") in new stack
[Oct  5 15:55:52]   == Manager 'sendcron' logged on from 127.0.0.1
[Oct  5 15:55:52]     -- Channel SIP/AIRESPRING-0000313b left 'simple_bridge' basic-bridge <c89b8bb0-dd1a-4131-9a3b-ea77e123e827>
[Oct  5 15:55:52]     -- Executing [8368@default:1] AGI("SIP/AIRESPRING-0000313b", "agi://127.0.0.1:4577/call_log") in new stack
[Oct  5 15:55:52]     -- Channel Local/917136324264@default-0000413b;2 left 'simple_bridge' basic-bridge <c89b8bb0-dd1a-4131-9a3b-ea77e123e827>
[Oct  5 15:55:52]   == Spawn extension (default, 917136324264, 2) exited non-zero on 'Local/917136324264@default-0000413b;2'
[Oct  5 15:55:52]     -- Executing [h@default:1] AGI("Local/917136324264@default-0000413b;2", "agi://127.0.0.1:4577/call_log--HVcauses--PRI-----NODEBUG-----16-----ANSWER-----26-----0-----SIP 200 OK)") in new stack
[Oct  5 15:55:52]     -- AGI Script Executing Application: (EXEC) Options: (Set(_CAMPCUST=DANRI))
[Oct  5 15:55:52]     -- <SIP/AIRESPRING-0000313b>AGI Script agi://127.0.0.1:4577/call_log completed, returning 0
[Oct  5 15:55:52]     -- Executing [8368@default:2] AGI("SIP/AIRESPRING-0000313b", "agi-VDAD_ALL_outbound.agi,NORMAL-----LB-----V0051555260000811482") in new stack
[Oct  5 15:55:52]     -- Launched AGI Script /usr/share/asterisk/agi-bin/agi-VDAD_ALL_outbound.agi
[Oct  5 15:55:52]   == Manager 'sendcron' logged off from 127.0.0.1



here is my dial plan and account entry

Code: Select all

[b]Account Entry[/b]
[AIRESPRING]
type=friend
host=173.245.32.23
canreinvite=no
insecure=port,invite
qualify=yes
disallow=all
allow=ulaw
allow=alaw
dtmfmode=rfc2833
context=trunkinbound

[b]Dial Plan[/b]
exten => _91NXXNXXXXXX,1,AGI(agi://127.0.0.1:4577/call_log)
exten => _91NXXNXXXXXX,n,Dial(SIP/${EXTEN:1}@AIRESPRING,60,RTto)
exten => _91NXXNXXXXXX,n,Hangup()



So i am hoping that someone much smarter than me (ie most of the people here, if not all, could help out on this.

[gequiros]

I can see you all are struggling and flooded with FAS

Let me tell you, AIRESPRING, they have the copyrights of have invented FAS, lol....

Now, seriously talking, We are a carrier using Stir Shaken Technology, give us a try and you will see results for yourself, in order to get best quality and NO FAS, you will need:

- Good Caller IDs ( Either get ours for Token A or bring yours for Token B )
- Use Rotation of caller IDs to not get them flagged so fast
- Remove DNC numbers from your list ( we can do it for free, this will burn DIDs faster )
- And we can guide you thru a process of what we have seen worked and help other customers to increase ASR

Please contact us, try and you won't get disappointed

Come 2 VoIP
info@come2voip.com
Phone / WhatsApp: +1-305-209-4241
Skype: Come2VoIP-USA