Wap中取手机号码（.Net实现）

能否取得完全取决运营商。。。。

string mobileno=Request.Headers["x-up-calling-line-id"];

            if(mobileno!=null)
                Tv_content.Text=mobileno.Substring(2,11);
            else
                Tv_content.Text="无法获得手机号";

现在基本上取不到了，连UA也无从获得。。。

附：一段截取到的Headers信息
Mitsubishi M330
Connection=Keep-Alive&Via=(infoX+WAP+Gateway)%2c+HTTP%2f1.1%2c+Huawei+Technologies&Accept=application%2fvnd.wap.wmlc%2capplication%2fsmil%2capplication%2fvnd.wap.mms-message%2ctext%2fplain%2ctext%2fx-vCard%2ctext%2fx-vCalendar%2capplication%2fvnd.wap.wtls-ca-certificate%2capplication%2fvnd.wap.wtls-user-certificate%2capplication%2fx-x509-ca-cert%2capplication%2fx-x509-user-cert%2capplication%2fvnd.wap.hashed-certificate%2capplication%2fvnd.wap.signed-certificate%2capplication%2fvnd.wap.cert-response%2cimage%2fgif%2cimage%2fjpeg%2cimage%2fpng%2cimage%2fvnd.wap.wbmp%2caudio%2f*%2capplication%2fvnd.trium.attractive-message%2capplication%2fx-mitsu-protected%2capplication%2fvnd.wap.wmlscriptc%2capplication%2fx-wap-prov.browser-settings%2capplication%2fx-wap-prov.browser-bookmarks%2capplication%2fvnd.wap.multipart.related%2capplication%2fvnd.wap.catc%2capplication%2fx-mmc.title%3bcharset%3dus-ascii%3bsize%3d17%2capplication%2fx-mmc.wallpaper%3bcontent-type%3dimage%2fgif%3bsize%3d30720%2capplication%2fx-mmc.wallpaper%3bcontent-type%3dimage%2fpng%3bsize%3d30720%2capplication%2fx-mmc.wallpaper%3bcontent-type%3dimage%2fjpeg%3bsize%3d30720%2capplication%2fx-mmc.ringtone%3bcontent-type%3daudio%2fvnd.digiplug.tri3%3bsize%3d2048%3bvoices%3d3%2capplication%2fx-mmc.ringtone%3bcontent-type%3dapplication%2fx-pmd%3bsize%3d2048%3bvoices%3d3%2capplication%2fvnd.wap.sic%2capplication%2fvnd.wap.slc%2capplication%2fvnd.wap.coc%2c+*%2f*&Accept-Charset=utf-8%2ciso-8859-1&Accept-Language=chinese%2c+en&Host=dwrcb.mywapbank.com&x-huawei-NASIP=211.138.197.141&X-Wap-Tod=Thu+Jan++1+00%3a00%3a00+1970&X-Rewrite-URL=%2ftest.aspx
Nokia6230(simulation)
Connection=Keep-Alive&Accept=application%2fvnd.wap.wmlscriptc%2c+text%2fvnd.wap.wml%2c+application%2fvnd.wap.xhtml%2bxml%2c+application%2fxhtml%2bxml%2c+text%2fhtml%2c+multipart%2fmixed%2c+*%2f*&Accept-Charset=ISO-8859-1%2c+US-ASCII%2c+UTF-8%3b+q%3d0.8%2c+ISO-10646-UCS-2%3b+q%3d0.6&Accept-Encoding=gzip%2c+deflate&Accept-Language=zh-CN%2c+zh&Host=dwrcb.mywapbank.com&User-Agent=Nokia6230%2f2.0+(04.44)+Profile%2fMIDP-2.0+Configuration%2fCLDC-1.1&Cookie2=%24Version%3d%221%22&x-wap-profile=%22http%3a%2f%2fnds1.nds.nokia.com%2fuaprof%2fN6230r400.xml%22&X-Rewrite-URL=%2ftest.aspx
Samsung 358
Connection=Keep-Alive&Via=(infoX+WAP+Gateway)%2c+HTTP%2f1.1%2c+Huawei+Technologies&Accept=application%2fsmil%2c+application%2fvnd.phonecom.mmc-xml%2c+application%2fvnd.wap.connectivity-wbxml%2c+application%2fvnd.wap.mms-message%2c+application%2fvnd.wap.wmlc%3btype%3d4365%2c+application%2fvnd.wap.wmlscriptc%2c+application%2fvnd.wap.xhtml%2bxml%2c+application%2fxhtml%2bxml%3bprofile%3d%22http%3a%2f%2fwww.wapforum.org%2fxhtml%22%2c+image%2fbmp%2c+image%2fgif%2c+image%2fjpeg%2c+image%2fjpg%2c+image%2fpng%2c+image%2fvnd.wap.wbmp%2c+image%2fx-up-wpng%2c+multipart%2fmixed%2c+multipart%2frelated%2c+text%2fhtml%2c+text%2fplain%2c+text%2fvnd.sun.j2me.app-descriptor%2c+text%2fvnd.wap.connectivity-xml%2c+text%2fvnd.wap.wml%3btype%3d4365%2c+audio%2fimelody%2c+text%2fx-imelody%2c+audio%2fmid%2c+audio%2fmidi%2c+audio%2fx-mid%2c+audio%2fx-midi%2c+application%2fvnd.smaf%2c+audio%2fmpeg%2c+audio%2fx-mpeg%2c+audio%2fmpg%2c+audio%2fx-mpg%2c+audio%2fmp3%2c+audio%2fx-mp3%2c+audio%2fmpeg3%2c+audio%2fx-mpeg3%2c+audio%2f3gpp%2c+audio%2f3gp%2c+audio%2f3g%2c+audio%2faac%2c+audio%2famr%2c+audio%2fmp4%2c+audio%2fm4a%2c+video%2f3g%2c+video%2f3gp%2c+video%2f3gpp%2c+video%2fmpeg%2c+video%2fmpg%2c+video%2fmp4%2c+video%2fmpg4%2c+video%2fmpeg4%2c+video%2fmpeg-4%2c+application%2fjava-archive%2c+application%2fjava%2c+application%2fvnd.oma.drm.message%2c+application%2fvnd.oma.dd%2bxml%2c+*%2f*&Accept-Charset=utf-8&Accept-Language=zh-cn%2c+en&Host=dwrcb.mywapbank.com&x-huawei-NASIP=211.138.197.138&X-Rewrite-URL=%2ftest.aspx