c# - AT commands appearing in the sms in asp.net -


i'm trying develop sms sending system using asp.net mvc 4 i'm using huawei usb 3g modem send sms. problem is, when receive sms, text coming this,

at+cmgf=1 at+cmgs="+8801671234567" name: sample name amount1: 1000.....

here codes,

public actionresult sendsms(int rentid=0) {     amountinfo billtable = db.amountinfoes.find(rentid);     var getname = db.amountinfoes.where(a => a.serial.equals(billtable.serial)).firstordefault();     string getname = getname.name;     int getamount1 = getname.amount1;     int getamount2 = getname.amount2;     int getamount3 = getname.amount3;     int getamount4 = getname.amount4;     int getamount5 = getname.amount5;     int getamount6 = getname.amount6;     string getnumber = getname.phone;     try     {         sp.portname = "com8";         sp.close();         sp.open();         string ph_no;         string the_no = getnumber;         string txt_msg = "name: " + getname + "   amount1: " + getamount1 + "   amount2: " + getamount2 + "   amount3: " + getamount3 + "   amount4: " + getamount4 + "   amount5: " + getamount5 + "   amount6: " + getamount6;         ph_no = char.convertfromutf32(34) + the_no + char.convertfromutf32(34);         sp.write("at+cmgf=1" + char.convertfromutf32(13));         sp.write("at+cmgs=" + ph_no + char.convertfromutf32(13));         sp.write(txt_msg + char.convertfromutf32(26) + char.convertfromutf32(13));         sp.close();     }     catch (exception ex)     {         throw ex;     }      return redirecttoaction("rentmanager"); }

is there wrong in code? how can fix problem @ commands not appear in sms? need badly. thanks.


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