Getting a blank screen on VM

[oneadvent]

I am getting a blank screen after the get voice mail line:
$voicemails = $gv->getNewVoicemail();

I put a:
echo "test";
directly after that line and I dont get that either. All of this as part of example.php.

I also marked one of my vm transcripts as unread and put it there, and still got no joy. Seems it isn't parsing vm correctly.

[oneadvent]

This can be cleared by:
yum install curl curl-devel php-xml php-pear php-devel
pecl download json
pear install json-1.2.1.tgz
and making the file: /etc/php.d/json.ini
and filling it with:
; php-json extension
extension=json.so

finally restart httpd.
credit goes to rxcomm at:
http://pbxinaflash.com/forum/showthread.php?p=58412&posted=1#post58412