Category : Asterisk Tips

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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.NagiosFor those of you who didnt know it, Nagios can be configured to monitor pretty m..

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Decrementing the CSeq header field value is directly in violation of RFC 3261. From section 22.2: When a UAC resubmits a request with its credentials after receiving a 401 (Unauthorized) or 407 (Proxy Authentication Required) response, it M..

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What should I do in order to to be as secure as possible and with “clean” logs?Well, for an article about Asterisk security best practices, consider reading this article.About SIP and NAT best practices, in short, the simplest answer is to alw..

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If you were wondering about the correct format of US numbers then this might come in handy. In short: The proper way to send CallerID number is 10 digit (from NANPA numbers), no preceding 1 or plus sign (+) as this is handled by the provider to the ..

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If after installing Asterisk 10.X.X you see the following errors on SIP reload: No valid Transports Available, Falling Back To UDP, This might be because a possible regression. Please open an issue in JIRA referencing th..

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Due to high volume of outbound calls you might be asked to alternate the outbound traffic by your termination provider.Basically, what what you need to do here is: Having 2 destinations (Dst_A, Dst_B), check/set a variable in the AstDB. Then if the varia..

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