Voice over IP SIP client
You may use any voice aware SIP client to connect to the 46elks server.
The client reach the server by A, NAPTR and SRV reccords, depending on what your
voice client supports.
||Client number without the + sign like 4600100100.
||The password for the number it is the value "secret" on the number object in the API.
||The server and number in combination like email@example.com
Making outgoing phone calls from a SIP or webRTC client is currently not supported.