Ooredoo APN settings for Apple iPhone & Tablets:
To change the APN Settings in Apple iPhone, follow the steps given below.
In your iPhone -> Settings -> Cellular -> Cellular Data Network -> APN -> Now add the following details.

Cellular Data:
APN: data
Username: Blank
Password: Blank
MMS:
APN: data
Username: Blank
Password: Blank
MMSC: http://mmsr.ooredoomms.qa
MMS Proxy: 10.23.8.3:8080
MMS Message Size: 1048576
MMS UA Prof URL: blank

Ooredoo APN Settings for Windows Phone:
To change APN Settings on your Windows Phone – Follow the steps that given below.
In your Windows Phone Settings -> Cellular -> SIM Settings -> Add Internet APN.

Internet APN Settings for Windows:
APN: data
Username: blank
Password: blank
Proxy Server (URL): blank
Proxy Port: blank
IP Type: ipv4

MMS APN Settings for Windows:
MMS APN Settings:
APN: data
Username: blank
Password: blank
Wap Gateway (URL): 10.23.8.3
Wap Gateway Port: 8080
MMSC Port: Blank
Maximum MMS Size: 1024
IP Type: Ipv4