What does asterisk do when it receives a SIP INVITE?

What does asterisk do when it receives a SIP INVITE?

When Asterisk receives an INVITE via SIP (a call coming intoAsterisk, whether from the outside world or from your desk phone) Asterisk tries to match the call to an entry in sip.conf to determine what it should do with the call.   The type=xxxline controls how Asterisk will try to make that match.

How does asterisk connect to a peer list?

When Asterisk receives a call, it first tries to match the call to a user by matching its From: name to a device name in the user list, and then failing that, as a peer by matching the IP address and port number to a device in the peer list.

Can a userentry make a call to asterisk?

A userentry does not have an IP address associated with it, and as such can only be used to send calls to Asterisk.   That is, Asterisk cannot place a call toa user, it can only receive a call froma user.   It’s fairly rare to use type=user.

How does asterisk make a match for a phone number?

The type=xxxline controls how Asterisk will try to make that match.   There are three choices; user, peer, and friend. A usermatches incoming calls to a device entry by its name, which is the bit in brackets – [TestPhone-A] in our example – based on the name given in the From: header of the incoming call.

What should my SIP name be on asterisk?

SIP Authentication User/Auth User – On Asterisk-based systems, this will be the same as the SIP user name above. Proxy Server/Outbound Proxy Server – This is the server with which your phone communicates to make outside calls. This should be set to the IP address of your Asterisk system.

How to register a phone to the asterisk system?

Registrar/Registration Server – The location of the server which the phone should register to. This should be set to the IP address of your Asterisk system. SIP User Name/Account Name/Address – The SIP username on the remote system. This should be set to demo-alice on one phone and demo-bob on the other.

Where do I find the asterisk Auth user name?

This username corresponds directly to the section name in square brackets in sip.conf. SIP Authentication User/Auth User – On Asterisk-based systems, this will be the same as the SIP user name above.

Where do I find the SIP user name?

This username corresponds directly to the section name in square brackets in sip.conf. SIP Authentication User/Auth User – On Asterisk-based systems, this will be the same as the SIP user name above. Proxy Server/Outbound Proxy Server – This is the server with which your phone communicates to make outside calls.