Exetel APN Settings for Windows Phone

In your Lumia Windows Mobile Go to Settings -> Network & Wireless -> Cellular & SIM Settings -> Add Internet APN

INTERNET APN
Profile Name: Exetel
APN: yesinternet
User name: Blank
Password: Blank
Type of Sing-in-info : None
IP Type :Ipv4
Proxy server (URL): Blank
Proxy Port : Blank

MMS APN
Profile Name: Exetel MMS
APN: yesinternet
User name: Blank
Password: Blank
Type of Sing-in-info : None
IP Type :Ipv4
Proxy Server : 61.88.190.10
Proxy Port : 8070
MMSC (URL): http://mmsc.optus.com.au:8002/
MMSC Port: Blank
Maximum MMS Size (KB): 1024

Exetel Windows Phone 7 APN

In your Lumia Windows Mobile Go to Settings -> Cellular -> SIM Settings -> Add Internet APN

INTERNET APN
APN: yesinternet
User name: Blank
Password: Blank
Proxy server (URL): Blank
Proxy Port : Blank
IP Type :Ipv4
MMS APN
APN: yesinternet
User name: Blank
Password: Blank
WAP Gateway (URL): 61.88.190.10
WAP gateway Port : 8070
MMSC: http://mmsc.optus.com.au:8002/
MMSC Port: Blank
Maximum MMS Size: 1024
IP Type :Ipv4