Robotic voice from caller.

[florin198]

Hello guys.
I'm administrating two 1.4.27.1-vici box, users report callers that have robotic voices, any clues on why this is happening ?, the user has enough bandwidth available.

[omarrodriguezt]

-Let us know that you already searched for your issue in the forum and the vicidial manual too
-Your vicidial version with build (required)
-Installation method with version
-Detailed description of the problem (with CLI output from a single attempt) is often very useful (not 3000 lines of code mind you, just a single attempt from start to finish in a test environment with no other calls in the system at the moment of testing)
-Detailed configuration description for all settings you believe "Pertinent" to the situation. We'll ask for more if you miss any, of course which may help you in your next instance with this particular problem.

http://wiki.vicidial.org/index.php/VICI ... otic_audio

[williamconley]

enough bandwidth available

sorry to burst that bubble: but robotic voice is almost always a bandwidth issue. it also generally relates to g729 (which is generally only used in low-bandwidth situations).

but let's have a look at your statement: enough available. I have this sneaking suspicion that you have not "shut off internet" entirely during an episode of this problem. As in: if it isn't Vicidial, it shouldn't be happening. No Twitter, no Youtube, nothing. Set it at the router to disable all internet packets going anywhere other than Vicidial. The next time Mr. Robovoice pops up ... flip that switch and see if Mr. Robovoice disappears suddenly. This includes the owner's iPad (even if his kid is playing a very important Video on it ... LOL).

You'd be surprised how easy it is to change "enough" bandwidth into "too little" for a short period of time during a website's burst mode download or upload.

And if you have not done it yet, try speedtesting the internet connection (I like broadband.gov's consumer broadband test ... it's administered by the FCC to gather data to force providers to increase their bandwidth and actually provide what they claim!). If you try that during the problem, continually checking, you may find that your bandwidth "dips" (Had that happen a few times ... suddenly have 0.1M bandwidth for 30 seconds will wreak havoc on a dialer!)

Happy Hunting

[florin198]

Hello Guys.
Thank you for your feedback.
@Omar I can't get more info about the system, I'm kinda of junior administrator, I don't have shell control, I don't have full control of the system, i get a lot of "You do not have permission to view this page ", the full control is in the hands of the vendor of the solution, sorry no .conf output available.

@William The problem struck many users of the system that are all over the globe, some of them have 256kb/sec speeds, but one of them has a 100 mb up/down connection, http://www.speedtest.net/result/2690476798.png, and has the same problem, because of the multiple complains in the same hour I suspect an ISP problem at the vendor or another problem at the vendor.

[omarrodriguezt]

Ok. If you are not the system administrator, is very hard to fix the issue. But, did you read the troubleshooting completely?

[Acidshock]

Its probably the SIP SERVERS internet connection not the clients connecting in. This is 95% of the time a bandwidth/connection issue.

Other things to check:

1. See if you are being brute forced by thousands of SIP REGISTER attempts.
2. Check the quality of the connection the server is on.
3. Try switching to ulaw if you are using g729
4. Run htop on each box and monitor the load of the servers. If you are peaking out your processor then you are going to experience these issues.
5. Check your connection to the carrier too. Run some pings and traceroutes to it and see what your response times look like.
6. Make sure you do not have QOS improperly configured on any firewalls. If you have ports 5060/tcp getting all the bandwidth and priority and dont have 10000-20000/udp added in then you will experience this issue as all the voice traffic happens on the udp ports. 5060 is just for registration and signaling.