[Asterisk-Users] Q: How to get the preset callerid from a CLID-no-screen E1-PRI

[Frank Sautter]

hi,

after several problems getting the right callerid on a E1-PRI there is 
(so far) only one problem left:

when receiving calls over the telephone network from another E1-PRI that 
has a "Caller ID no screen" capability (e.g. a bank and a customer of 
us), asterisk does not get the callerid that is set up by the calling 
PBX, but the callerid of the trunk of the calling PRI. no matter if the 
callerid is within or without the assigned callerid range of the calling 
PBX.
our customer uses this feature to show the callerid of the original 
caller when redircting a call to a mobile phone.

i searched through the sourcecode of chan_zap and a little bit through 
libpri but did not find any variable containing the number.

our ericsson BP250 PBX formerly connected to our E1 showed the callerid 
set by the caller correct. in the CDR of the ericsson both numbers appeared.

any help is appreciated.

regards
  frank sautter