Recommended VOIP Monitoring Tools

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As system administrator, monitoring the continuity of services is vital. Today I would like to highlight some tools that could come in handy for VoIP monitoring.

Nagios

For those of you who didn't know it, Nagios can be configured to monitor pretty much anything you want, including Asterisk servers. Actually, with Nagios the (much) harder part is deciding what’s relevant to monitor, and what your alarm thresholds should be set at. Some VoIP community members have reported that they used Nagios to monitor ~4,000 hosts and about 8,000 to 10,000 services before they started running into scaling problems on a single box. For…

Asterisk Tips 3.1 years ago 2 Answers

Clipping issue with SIP over satellite

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I'm having a wierd clipping issue with one employee who's using a phone
over a satellite Internet. He was sold that system specifically for use
with VoIP. Ping times show average round-trip time as around 700 ms with a
range of 560 to 841, so considerable jitter. Things work fine when he's talking to another Asterisk phone or to a SIP
trunk provider, but when connecting to a T1, there's clipping where about
1/3 of his voice (in intervals of maybe 200ms) are removed. This sounds
like an echo canceller conflict, but I've set…

Asterisk Users 3.2 years ago 5 Answers

app_swift beta release

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Hi folks, Just a note to let everyone know I've finally finished up the new BETA release of app_swift (now v3.0.1 b1).
This release introduces some pretty major changes to app_swift such as: - The entire code-base has now been unified and the build system auto detects which Asterisk version you're using (yay! one branch!) - Auto-detection and support for both the Cepstral 5.0 and 6.0 engines - Support for Asterisk 1.4, 1.6, 1.8, 1.8 Certified, and 10 - Asterisk 1.2 support has been dropped.
I have only been able to do some basic testing with…

Asterisk Users 3.2 years ago 0 Answers

Music instead of Ring Ring

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Hello, How can I achieve to play a music file instead of typical ring ring
(something like MusicOnHold)... I have the following dialplan, the time when the user calls the context is
executed and the system calls both the user and I hear a Ringing sound. [inc-call]
exten => s,1,Dial(DAHDI/i1/USER2&DAHDI/i1/USER1,20,A(sound-file)) Please suggest

Asterisk Users 3.2 years ago 0 Answers

Getting unwanted pager email from Asterisk voicemail

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My guess is that your email provider is forwarding the message since
Asterisk should send the same content to both places. From: asterisk-users-bounces@lists.digium.com
[mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of Duncan
Turnbull
Sent: Thursday, May 31, 2012 6:33 AM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: [asterisk-users] Getting unwanted pager email from Asterisk
voicemail Hi All I am not sure why but I am getting a pager email as well as a voicemail
email when a voicemail is left. I am guessing its a setting somewhere but I
can't find it…

Asterisk Users 3.2 years ago 3 Answers

Common/Reasonable Assumption on DID/Channel over-subscription

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Hello All, just throwing this out there. What are people generally using these days
when designing their services, esp. those that require a user to call a DID
to access their system, similar to calling card services. There was a time
when this used to be 50 to 1 for DIDs, and about 10 to 1 for number of
channels bought in SMB with IP-PBX. I believe this would have changed today and assuming a service is pretty
popular, the ALOCs are longer due to cheaper rates and convenience of
calling. Does anyone have…

Asterisk Users 3.2 years ago 1 Answer

URA

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Hi Recently our asterisk system stopped beign recognized by URA in others
telephones exchanges. What's the troubleshoot steps for this issue?

Asterisk Users 3.2 years ago 0 Answers

British Telecom ISDN BRI line issues

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Should I understand that no Asterisk user has issues with ISDN "system
access" configuration from UK? or maybe no one is using Asterisk In UK :) ? On Tue, May 8, 2012 at 12:46 PM, khalid touati wrote: > Hi All,
> I am posting this thread with the hope that someone in UK (or elsewhere)
> had a similar issue:
> Our issue is simple, we cannnot use our ISDN line, when watching asterisk
> console it gives a bunch of ISDN errors where the following is probably the
> most relevant:

Asterisk Users 3.3 years ago 19 Answers

Replacing PBX with Asterisk, need feedback on my new architecture.

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I'm about to receive approval to design and deploy an Asterisk-based
phone system for my company. I will immediately have to start writing
specifications. I'm working on the hardware design and the architecture
right now. I'd like a second, third, fourth, 1,000th opinion. 800 SIP phones. All will be G.722. I expect 200 concurrent calls, with
20% leaving to the outside world. There will be another 200 analog lines
that will for the time being remain on the TDM PBX switch they reside
on, and will be whittled down and converted to SIP as…

Asterisk Users 3.3 years ago 10 Answers