The flow diagram below shows how each of these files are used when an outgoing autopatch call is made: The ITSP should provide a stanza for you to insert in iax.conf or sip.conf. Three configuration files will be affected: rpt.conf, nf and iax.conf or sip.conf.
Quite a few ITSP's will automatically generate a custom SIP or IAX stanza for insertion into sip.conf, or iax.conf respectively. When selecting an ITSP, make sure they provide setup instructions with example configurations including usernames, and passwords. Termination is usually provided using the SIP protocol, and IAX is also offered by a few providers. In the reference section is a link to a site which lists several ITSP's. This is a highly competitive business, and there are lots of ITSP's offering termination for Asterisk users.
WHAT IS A PHONE PATCH HAM RADIO HOW TO
The asterisk book in the references section should be consulted to see how to do this, Before placing any autopatch in service, please make sure you have secured your system so that toll fraud does not become an issue.Ĭall termination into the public switched telephone network is a service offered by an Internet Telephone Service Provider (ITSP). Most of the prevention measures will be in nf, as you can write contexts to reject certain number sequences. A lot can be done to prevent or reduce toll fraud, but the prevention measures vary by where you are located geographically. Security Issues The examples provided here do not secure the autopatch against toll fraud.
In countries which permit autopatching, users need be made aware of this and should take the node off-link before using the autopatch. In addition, if a system is linked between one country which allows autopatching and one which doesn't, just the passing of the traffic itself across the link could be considered a violation of the rules in the prohibiting country. Regulatory Issues Some countries which disallow third-party traffic do not allow autopatching or telephone interconnection on amateur radio frequencies.
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