[asterisk-users] Is it possible to get full callin number from E1?

[ssmax]

Hi all
    
    i have just set up a asterisk in china, using DE410P and one E1 line
    and get a phone number like: +86 020 87654321 from my sp
    when somebody dial  +86 020 87654321 , the asterisk will get the call in number by ${EXTEN} variable, but it can only get 87654321, no area code .
    when someone dial  +86 020 87654321xxxx , xxxx means 4 digits,  the phone can call in, and the  ${EXTEN}  is only  87654321 too , 
    is it possible to get  full call in number 87654321xxxx  in asterisk ?  thanks
 				
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ssmax
2009-03-12