The following is a sample, please adjust according to your actual needs:
For Example (Mms APN):
<?xml version= "1.0" encoding= "UTF-8"?>
<! DOCTYPE wap-provisioningdoc Public "-//wapforum//dtd Prov 1.0//en" "HTTP://WWW.WAPFORUM.ORG/DTD/PROV.DTD" >
<wap-provisioningdoc version= "1.1" >
<characteristic type= "BOOTSTRAP" >
<parm name= "name" value= "WAP y MMS"/>
<!parm name= "Provurl" value= "http://www.mediatek.com/"/>
<parm name= "Context-allow" value= "0"/>
<parm name= "Proxy-id" value= ""/>
</characteristic>
<characteristic type= "Pxlogical" >
<parm name= "Proxy-id" value= "Id4"/>
<parm name= "name" value= "MMS"/>
<characteristic type= "Pxphysical" >
<parm name= "Physical-proxy-id" value= "Id4"/>
<parm name= "pxaddr" value= "10.0.0.172"/>
<parm name= "Pxaddrtype" value= "IPV4"/>
<parm name= "To-napid" value= "AP4"/>
<characteristic type= "PORT" >
<parm name= "Portnbr" value= "/>"
</characteristic>
</characteristic>
</characteristic>
<characteristic type= "Napdef" >
<parm name= "Napid" value= "AP4"/>
<parm name= "BEARER" value= "Gsm-gprs"/>
<parm name= "name" value= "MediaTek MMS (China Mobile)"/>
<parm name= "nap-address" value= "Mediatekcmwap"/>
<parm name= "Nap-addrtype" value= "APN"/>
</characteristic>
<characteristic type= "Application" >
<parm name= "APPID" value= "W4"/>
<parm name= "name" value= "MMS"/>
<parm name= "ADDR" value= "http://mmsc.monternet.com"/>
<parm name= "To-proxy" value= "Id4"/>
<parm name= "CM" value= "R"/>
</characteristic>
</wap-provisioningdoc>
OMACP XML File Sample for Android MMS APN