Working program example

[ande0581]

Would you happen to have an example program you could share that may help me better understand how to get started? I am not sure how to use the framework to execute a sip dialog.

add INVITE logic here
add REGISTER logic here

What would be some common examples of how you envision this framework being used?

Thanks!

[hyperioxx]

I should start by saying this framework is stateless (to be able to scale in a docker environment).

this is an example of a SIP Router/Redirection Service where by we route based of a redis datastore of phone numbers so we can then route to another regions SIP application server (Broadworks).

import settings
from Katari import KatariApplication
from Katari.sip.response import ResponseFactory
from utils.redis import RegionStore, NumberStore

app = KatariApplication(settings=settings)
Numbers = NumberStore()
Region = RegionStore()

@app.invite()
def do_invite(request, client):
     response = ResponseFactory.build(302) # SIPResponseFactory returns a response instance based from sip code e.g. 302 Moved Temporarily
     response = request.create_response(response) # creates response from request
     to_number = request.get_to().get_user() #gets user/phonenumber from to field
     response.clean_contact() # removes pre existing contact from request (this is because we use the request to generate a response)
     route = Numbers.get_number(to_number)
     if not route:
         route = Region.get_route(settings.REGION)
     else:
         app.logger.info("Found route on {}".format(to_number))
     response.append_contact("{}@{}".format(to_number, route), "0.5") # adds new contact to contacts header with a weight "0.5" 
     response.set_content_length("0") # sets content length 0 as there is no payload 
     app.send(response, client) # returns the response


@app.options()
def do_options(request, client):
     response = ResponseFactory.build(200)
     response = request.create_response(response)
     response.set_content_length("0")
     app.send(response, client)


if __name__ == "__main__":
     app.run()

Any other questions let me know