On Mon, May 23, 2022 at 5:52 PM Dan Cropp <d...@amtelco.com> wrote: > We have a customer who wants to perform both directions. > > > > For inbound calls, they have indicated their switch will provide > Geolocation/E911 information using two different ways. Sounds like it > depends on the equipment before the SIP proxy. > > It will either be in SIP headers (which we retrieve through PJSIP_HEADER > in the dial plan). Trivial for us to do this approach. > > Second approacy is their SIP proxy will append information to the body > with mime delimiters (indicating content type of pidf+xml). > > > > They want us to retrieve this information (via Asterisk) and store it into > their database. When a 911 agent answers the call, they retrieve the data > from the database and use it as needed for assisting the first responders. > > > > If Asterisk can’t do this and isn’t planned to be able to support this, > we’re looking to make Kamailio able to process the INVITE in front of > Asterisk. Idea being Kamailio could communicate the information our > customer requires and we store it in the database. When Agent answers the > call, use the Call-ID provided by Asterisk to match it with the Kamailio > INVITE data’s Call-ID. > > > > > > We are still trying to gather details on how the customer wants the > outbound calls to work. >
Both directions will be supported according to the specification and standard. The information will be accessible from the dialplan using a dialplan function, but not the pidf+xml itself. If they're doing something outside of the standard, then it likely wouldn't work. The code is not written for 911 PSAPs/handlers specifically, it's written for receiving the information from an endpoint, and for sending it out. -- Joshua C. Colp Asterisk Technical Lead Sangoma Technologies Check us out at www.sangoma.com and www.asterisk.org
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