General Info

This page will serve as a repository to help explain the functionality of custom idle screens, as well as document bugs and identify work-arounds where possible.

Please refresh the page before editing, as others may have made changes in the meantime.

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Firmware Notes and Bugs

Firmware 1.1.1.14

Bugs

• FEATURE (Nov22/07) - Allow to refresh the idle screen via the web interface (even by toggling the download setting) this will at least permit 'polling' of the devices by a remote host to download a new screen, so that hotdesking updates can trigger a screen change.- Acumen
• FEATURE (Feb21/07) - Allow to automaticaly refresh the idle screen after a given secs e.g. for "queue viewing","news reeding" purposes.- WDTY

Firmware 1.1.1.9

Bugs

• MINOR (Aug18/06) - Random corruption on screen when using custom XML file. Noticable as dots or lines on the extreme left and right of text blocks. - acabtp
• MINOR (Aug18/06) - The phone seems to always evaluate the "a1reg" as true, resulting in any <DisplayStr> that have "a1reg=false" never being displayed, and <DisplayStr> that do not have "a1reg=false" always being displayed, regardless of the Line 1 registration state. - acabtp
• FEATURE (Nov2/06) - Allow the display of the Account 1 "Account Name" via some format string — perhaps $N? - awint

Firmware 1.1.1.7

(JUL17,2006) Idle screen configuration functionality is introduced. - MikeB

Bugs

• MAJOR (Jul24/06) - Using custom bitmap with offset causes phone to crash. Suspect chunks of memory are being overwritten by the offset routine. The problem reoccurs every reboot when the phone attempts to load the Custom SCR. To remedy this, I had to reboot the phone with the network cable disconnected, and clear the custom screen from the preferences menu before it could be loaded. - acabtp
• MINOR (Jul24/06) - Random corruption on screen when using custom XML file. Noticable as dots or lines on the extreme left and right of text blocks. - acabtp
• MINOR (Jul24/06) - Using the $d variable reference causes the phone to display only the last digit of the day of the month, and the rest of the <DisplayStr> after the $d is truncated. - acabtp
• MINOR (Jul24/06) - The phone seems to always evaluate the "a1reg" as true, resulting in any <DisplayStr> that have "a1reg=false" never being displayed, and <DisplayStr> that do not have "a1reg=false" always being displayed, regardless of the Line 1 registration state. - acabtp
• FEATURE (Aug11/06) - Should be able to specify auto download of the XML file on boot-up, it's odd you have to do this manually! - mattb
• FEATURE (Oct18/06) - Can change the name of the xml file, for example to use a php file, to generate a dynamic idle screen! - jorgeci

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Grandstream documentation on configuring idle screens
XML Based Customizable Screen Rev 1.3

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Variables

The following variables have been provided by Grandstream. When entered in a <DisplayStr> element, these strings will be replaced by their corresponding values.

- acabtp

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Excerpt from the Phone Manual

The feature will be activated when “Enable Idle-Screen XML Download� is set to YES (HTTP or TFTP) AND a valid “Idle-Screen XML Path� is set. This feature does not automatically download the gs_screen.xml file in the path even when activated. Because the LCD is composed of 130*64 mono pixels, the resolution of the screen XML should be within this range. The following 2 options are added to the Preference LCD GUI submenu:

• Download SCR XML
• Erase Custom SCR

User will have to choose to Download SCR XML to start the download process. Once the XML is successfully downloaded it will be effective right away. The file will be saved and loaded automatically after reboot.

Example XML file of gs_screen.xml:

<?xml version="1.0"?>
<Screen>
   <IdleScreen>
       <ShowStatusLine>false</ShowStatusLine>
       <DisplayBitmap>
           <Bitmap>Put your customized screen file with bitmap format here</Bitmap>
           <X>0</X>
           <Y>0</Y>
       </DisplayBitmap>
       <DisplayString font="f8" halign="Right">
           <DisplayStr>Doraemon</DisplayStr>
           <X>130</X>
           <Y>0</Y>
       </DisplayString>
       <DisplayString font="f10" halign="Left" valign="Bottom">
           <DisplayStr>Call me:</DisplayStr>
           <X>0</X>
           <Y>54</Y>
       </DisplayString>
       <DisplayString font="f8" halign="Left" valign="Bottom">
           <DisplayStr>$X@$V</DisplayStr>
           <X>0</X>
           <Y>64</Y>
       </DisplayString>
   </IdleScreen>
</Screen>

Note: The feature requires some expertise on XML. For more technical
details, please contact Grandstream.

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Complete Bitmap example for GXP-2020

Because this is a little confusing, and poorly documented, I created and tested a complete example with a new GXP-2020. It includes Tux, the Asterisk Logo, IP, Date, and Time on the Idle screen. Copy, paste, enjoy! ~ Etamme

Example

In this example, the company name is displayed at the top, the account name, the account number (in the largest font with a leading "x" for "extension"), and the current date. This may be more useful in an corporate or executive environment where the user will almost never need to know what IP address their phone is.

djr: there's no point in having identical output conditioned by a1reg="Yes" and also by a1reg="No". Just leave out the a1reg attribute completely and only include the output once.

gs_screen.xml:
<?xml version="1.0"?>
<Screen>
   <IdleScreen>
       <ShowStatusLine>true</ShowStatusLine>
       <DisplayString font="f10" halign="Center">
           <DisplayStr>Company, Inc.</DisplayStr>
           <X>64</X>
           <Y>0</Y>
       </DisplayString>
       <DisplayString font="f13h" halign="Center" a1reg="No">
           <DisplayStr>$N</DisplayStr>
           <X>64</X>
           <Y>11</Y>
       </DisplayString>
       <DisplayString font="f13b" halign="Center" a1reg="Yes">
           <DisplayStr>$N</DisplayStr>
           <X>64</X>
           <Y>11</Y>
       </DisplayString>
       <DisplayString font="f16h" halign="Center" a1reg="No">
           <DisplayStr>x$X</DisplayStr>
           <X>64</X>
           <Y>23</Y>
       </DisplayString>
       <DisplayString font="f16b" halign="Center" a1reg="Yes">
           <DisplayStr>x$X</DisplayStr>
           <X>64</X>
           <Y>23</Y>
       </DisplayString>
       <DisplayString font="f8" halign="Center">
           <DisplayStr>$W, $M $D, $Y</DisplayStr>
           <X>64</X>
           <Y>40</Y>
       </DisplayString>
   </IdleScreen>
</Screen>
- acabtp

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Adding Bitmaps to the XML file

Should you decide to place a custom bitmap in the SCR file theres a few things to note:

First of all, the bitmap must be a 2 color(mono) bitmap that is exactly 130x64 pixels in size. You can do this quite easily in MS Paint. Personally I used fireworks to import whatever logo I was going to use, then did a black color fill on it. After that I just copied and pasted into MS Paint and saved as a Mono BMP file. I'm not exactly sure why the image has to be exactly 130x64 but I assume Grandstream did not make a routine to check the headers of the bitmap image, either that or I'm missing a tag for the image size somewhere. If you use an image smaller than 130x64, the image will not come across properly. If you use a bigger image, the image will not come across at all.

Once you get your bitmap finished, you will need to convert the file to a Base64 string using uuencode or a similar program. Be sure to remove any headers, trailers or line feeds from the output of uuencode.
for instance:


then if you cat base64.txt you will get something like this:



You then would need to remove the first and the last line, and then all line feeds to produce the following:


The short way to do all that is this command:



Now simply place the base 64 string (without any linefeeds or spaces) between <Bitmap> and </Bitmap> tags in your xml file



- ninthclowd

An easy way to get your .bmp into Base64 without having to download and install a port of uuencode is to just email it to yourself. View the source of the email, and you can copy out the data from the MIME container for the .bmp... it has been conveniently encoded in Base64 for you. - acabtp

- Beau Button

An even easier way to get your .bmp into Base64 is to use this online Base64 encoder

Script for BMP Conversion

Here is a short script for converting a 1-bit BMP to a string suitable for insertion to an idlescreen XML file.

Requires: PHP, uuencode, tr
Configuration: change $tmpdir to suit your system
Input: a file named logo.bmp in the same directory as the script
Output: a file name logo.64 in the same directory as the script


- bshep

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Create indivudual GXP2000 Idle screens using Apache2(mod_rewrite module), PHP and MySQL

GXP2000 Firmware 1.1.5.15

Using the following apache mod_rewrite rule in http.conf any gs_screen.xml can be created when requested.

The reason for a rewrite rule is Grandstream fix the file name for the idle screen to "gs_screen.xml" and can not be changed, but we can add to the path to make the path unique for each phone.
The result is www.mydomain.com/gxp/GXP0001 becomes www.mydomain.com/gxp/php/gs_screen.php?name=GXP0001

djr: Almost... the result is www.mydomain.com/gxp.GXP0001/gs_screen.xml becomes the URI shown. That's the point- Grandstream requires that the filename be gs_screen.xml. The question mark at the end of the pattern after screen.xml is extranneous - it makes the final lower-case ell optional, which it isn't.

This rule assumes that the GXP2000's "Idle Screen XML Server Path" is set to www.mydomain.com/gxp/GXP0001
Where GXP0001 matches the SIP user ID in this example of GXP0001
Also "Enable Idle Screen XML Download Yes,HTTP " should be selected.

The end user still has to manually download the custom idlescreen through the use of the keypad, until GrandStream enable us to have some event to automatically do this.

The following is our test (be careful no error checking for records not found etc) PHP script to create a dynamc gs_screen.xml from a mysql database

/var/www/gxp/php/gs_screen.php


The mysql pbx table


An example record;

• FEATURE (Mar27/08) Firmware 1.1.5.15 Ability to automatically refresh IdleScreen as already requested, many times, For DND status, Unavailable Status, Agent Login Status etc. etc. etc.

  The refresh method could be one of the following;
  Similar to GXP2020 SoftKeys action event

  or a sip_notify message from the server, or a regular timed download, or a combination of them all.

Looking forward to Grandstream supporting this request. Until then something to start with.

- alecdavis

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See Also

• GXP-2000
• GXP-2000 XML Phonebook
• GXP-2000 Firmware Hacking
• GXP-2000 Legacy Firmware Notes
• GXP-2000 Disaster Recovery
• Grandstream
• Grandstream GXP-2000 - Solving Echo Problems---