 |
|
|
|
|
The /var/lib/asterisk/ directory contains the astdb file and a number of subdirectories . The astdb file contains the local Asterisk database information, which is somewhat like the Microsoft Windows Registry. The Asterisk database is a simple implementation based on v1 of the Berkeley database. The db.c file in the Asterisk source states that this version was chosen for the following reason: "DB3 implementation is released under an alternative license incompatible with the GPL. Thus in order to keep Asterisk licensing simplistic, it was decided to use version 1 as it is released under the BSD license."
The subdirectories within /var/lib/asterisk/ include:
The agi-bin/ directory contains your custom scripts, which can interface with Asterisk via the various built-in AGI applications. For more information about AGI, see Chapter 8.
The firmware/ directory contains firmware for various Asterisk-compatible devices. It currently contains only the iax/ subdirectory, which holds the binary firmware image for Digium's IAXy.
Applications that communicate with channels supporting graphical images look in the images/ directory. Most channels do not support the transmission of images, so this directory is rarely used. However, if more devices that support and make use of graphical images are released, this directory will become more relevant.
Asterisk can use a public/private key system to authenticate peers connecting to your box via an RSA digital signature. If you place a peer's public key in your keys/ directory, that peer can be authenticated by channels supporting this method (such as the IAX2 channels). The private key is never distributed to the public. The reverse is also true: you can distribute your public key to your peers, allowing you to be authenticated with the use of your private key. Both the public and private keys—ending in the .pub and .key file extensions, respectively—are stored in the keys/ directory.
When you configure Asterisk for Music on Hold, applications utilizing this feature look for their MP3 files in the mohmp3/ directory. Asterisk is a bit picky about how the MP3 files are formatted, so you should use constant bitrate (CBR) encoding and strip the ID3 tags from your files.
All of the available voice prompts for Asterisk reside in the sounds/ directory. The contents of the basic prompts included with Asterisk are in the sounds.txt file located in your Asterisk source code directory. Contents of the additional prompts are located in the sounds-extra.txt file in the directory to which you extracted the asterisk-sounds package earlier in this chapter.
|
|
 |
|
 |