[Asterisk-Users] problems with tdm11p

[jonny hashem]

sometimes my tdm11p reads the caller id and sometimes 
doesnt read it and give me this :

Jul 21 13:55:50 NOTICE[6284]: callerid.c:307
callerid_feed: Caller*ID failed checksum
Jul 21 13:55:54 WARNING[6284]: chan_zap.c:5739
ss_thread: CallerID returned with error on channel
'Zap/4-1'

what is the problem please help.

__________________________________________________
Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around 
http://mail.yahoo.com