Here is a quick and dirty python script I started writing some time ago.

It takes an asterisk log (/var/log/messages in my case) and save a different file for each call in asterisk log. It puts that files in 'logsdir' directory

It needs a lot of improvements, but it's a starting point

• It should save its status to a file to avoid parsing the whole file each time it's started
• It's actually based on asterisk pids, some files are not related to calls
• Files naming should be handled better (now the PID # is used)

#!/usr/bin/python
import re
import pickle
from sets import Set

switch = 1
logfile = '/var/log/messages'
logsdir = '/var/log/asterisk/calls/'
statusfile = '/etc/asteriskanalog.dat'

#Tune it with the average number of concurrent call of your sistem
maxfd = 10

f = open(logfile, 'r')

exp = re.compile("asterisk\[[0-9]+\]")

calls = Set([])
fdlist = {}
openfiles = []

for line in f:
        m = exp.search(line)
        if m:
                callid = line[m.start()+9:m.end()-1]
                calls.add(callid)
                if callid not in openfiles:
                        if len(openfiles) >= maxfd:
                                fdlist[openfiles[0]].close()
                                openfiles.pop(0)
                        fdlist[callid] = open(logsdir+callid, 'a')
                        openfiles.append(callid)
                fdlist[callid].write(line)


s = open(statusfile, 'w')
pickle.dump(calls, s)
s.close()