The .vln log file format is in GZIP, a binary format. You can create a text version of the .vln file using NLog's Open command and then selecting Generate a .log text file. You can also use a compression utility, such as WinZip, by copying or renaming the .vln file with a .gz extension, and then opening it in the compression utility.
The following sections explain the format of the .log text file.
The major visual cue for distinguishing a Log message from a Channel Status message is the absence / presence of pound characters (##) at the start of a line:
Log Message: Indicated by absence of ##
Channel Status Log: Indicated by presence of ##
In the example below, Line 1- is a typical log message, while Line 2 - is a typical channel status log:
The channel status log always starts with ## characters.
The table below explains how to parse the channel status log to retrieve certain parameters. All examples refer to the sample log message in Differentiating Log Messages.
|
Parameter |
Position |
Example |
|
Application Name |
Between the third and fourth tilde ~ |
P2476 |
|
Channel Parameter |
Between the fourth and fifth tilde ~ |
1 zero-based or 2 1-based |
|
Control Name |
Between the fifth and sixth tilde ~ |
Dial4 |
|
Statustype |
Between the sixth and seventh tilde ~ |
5 or DIALLING |
|
Control Start Time |
Between the seventh and eighth tilde ~ |
548 ms |
|
Call Start Time |
Between the eighth and ninth tilde ~ |
704 ms |
|
Status String |
Between the ninth and tenth tilde ~ |
,,11 |
|
Originating LineGroup Name |
Between the eleventh and twelfth tilde ~ or the last pair The name of the LineGroup control the current channel originated from |
LineGroup1 |
A Log Message has no ## characters starting at position 19.
The table below explains how to parse the log message to retrieve certain parameters. All examples refer to the sample log message in Differentiating Log Messages.
|
Parameter |
Position |
Example |
|
Application Name |
Starts at character 1 Ends before the following / |
P2476 |
|
Channel |
Starts after the first /, immediately following the application name Ends at the following empty space " " The zero-based channel parameter is always greater than 1 character |
Equal to 1 zero-based or 2 1-based |
|
Logmsgtypes |
Last character or the character following the last tilde ~ |
1 or LOGFUNCMSG |
|
Icon |
Between the third and fourth tilde ~ Greater than 1 character |
-1 |
|
Log String |
Starts after two non-consecutive empty " " spaces Ends with three tildes ~~~ Greater than 1 character |
ch 2 voice call ',,11' |