You can try this:
in file include/client/open.inc.php
42 <tr>
43 <td>Telephone:</td>
44 <td><input type="text" name="phone" size="25" value="<?=$info?>">
45 Ext <input type="text" name="phone_ext" size="6" value="<?=$info?>">
46 <font class="error"> <?=$errors?></font></td>
47 </tr>
change to:
42 <tr>
43 <td>Telephone:</td>
44 <td><input type="text" name="phone" size="25" value="123456789">
45 Ext <input type="text" name="phone_ext" size="6" value="<?=$info?>">
46 <font class="error"> <?=$errors?></font></td>
47 </tr>
Where 123456789 is your default phone number, then users will not have to put the phone number, you can set it to 0 or whatever you like.
This is the easy way, the hard way would be to get rid of verification of this field.
