APN : mms.qtel
Username : mms
password : mms
MMSC : http://mmsr.qtelmms.qa
MMS Proxy : 10.23.8.3:8080
MMS max message size :(leave it blank)
MMS UA PROF URL :(leave it blank)

restart the iphone after entering these (do not forget)

these settings are working for me...

peace.