Username

The user whose IAX account will belong

IAX user

The user that will be used to authenticate in the softphone

IAX password

The Password that will be used to authenticate in the softphone

CallerID

This is the CallerID that will be shown in their destination, in external calls the provider will need to permit CLI to be correctly identified in their destination.

Disallow

In this option will be possible to deactivate codecs. To deactivate all the codecs and letting available to the user only what you select below, use “Use all”

Codec

Codecs that will be accepted.

Host

“Dynamic” allows the user to register this account from any IP address. To authenticate by IP, enter the client IP here, leave the password blank, and set insecure to port/invite in the Additional Information tab.

NAT

The client is behind NAT. You can see more details at the link https://www.voip-info.org/asterisk-sip-nat/..

Context

Asterisk context where calls from this account will be processed. The default is “billing”. Change this only if you understand the Asterisk dialplan.

Qualify

Sends SIP OPTIONS packets to verify whether the peer is online.
Syntax:

qualify = xxx | no | yes

XXX is the number of milliseconds used as the timeout. If the value is “yes”, Asterisk uses the time configured in sip.conf. The common default is 2 seconds.

When qualify is enabled, Asterisk sends OPTIONS packets regularly to verify whether the device is still online.
If the device does not answer within the configured time, Asterisk considers the device offline for future calls.

This status can be verified with the “sip show peer XXXX” command. Asterisk only shows qualify status when the peer has qualify enabled.

Dtmfmode

DTMF mode used by this account. You can see more details at the link https://www.voip-info.org/asterisk-sip-dtmfmode/..

Insecure

If the host is dynamic, this option must be set to no. For IP authentication, use port. You can see more details at the link https://www.voip-info.org/asterisk-sip-insecure/..

Type

Default type is “friend”, which allows the account to make and receive calls. You can see more details at the link https://www.voip-info.org/asterisk-sip-type/..

Call limit

Total of simultaneous calls allowed for this IAX account.