a bit more verbouse description of ser as SIP stack optionality

git-svn-id: http://svn.berlios.de/svnroot/repos/sems/trunk@979 8eb893ce-cfd4-0310-b710-fb5ebe64c474

README

@@ -188,28 +188,35 @@ Installation:
     is at '/usr/local/etc/sems/sems.conf'. 
     Else make your own using sems.conf.sample.
 
- 4. Optional: Get and start SER as SIP stack for SEMS: 
+ 4. Optional, needed if you want to use SER as SEMS frontend (SIP stack):
+    Get and start SER as SIP stack for SEMS: 
     
     By default, sipctrl plugin is loaded, which is the integrated SIP 
     stack for SEMS. If SER should be used, the following procedure is
-    necessary: 
-    To install the ser-0.9.6-sems into the directory /some/dir the 
-    following commands can used:
-
-     $ wget http://ftp.iptel.org/pub/sems/ser-0.9.6-sems_src.tar.gz
-     $ tar xzvf ser-0.9.6-sems_src.tar.gz
-     $ cd ser-0.9.6-sems
-     $ make install PREFIX=/some/dir
-
-    With the install target install-ser-cfg, e.g. using 
-     $ make install-ser-cfg SERPREFIX=/some/dir 
-    you can install a general ser-sems.cfg which will work with 
-    ser-0.9.6-sems and make SER to act only as SIP stack for SEMS, i.e. 
-    direct every request to SEMS. Then 
-     $ /some/dir/sbin/ser -f /some/dir/etc/ser/ser-sems.cfg
-    runs SER on port 5070. This way, several versions of SER can be 
-    used on the same server, e.g. a different version of SER as Registrar
-    server.
+    necessary for ser 0.9.6-sems as SIP stack: 
+    o To install the ser-0.9.6-sems into the directory /some/dir the 
+      following commands can used:
+
+      $ wget http://ftp.iptel.org/pub/sems/ser-0.9.6-sems_src.tar.gz
+      $ tar xzvf ser-0.9.6-sems_src.tar.gz
+      $ cd ser-0.9.6-sems
+      $ make install PREFIX=/some/dir
+
+      With the install target install-ser-cfg, e.g. using 
+       $ make install-ser-cfg SERPREFIX=/some/dir 
+      you can install a general ser-sems.cfg which will work with 
+      ser-0.9.6-sems and make SER to act only as SIP stack for SEMS, i.e. 
+      direct every request to SEMS. Then 
+       $ /some/dir/sbin/ser -f /some/dir/etc/ser/ser-sems.cfg
+      runs SER on port 5070. This way, several versions of SER can be 
+      used on the same server, e.g. a different version of SER as Registrar
+      server.
+
+    o For ser 2.0/sasi use this patched ser2.0 version:
+      http://ftp.iptel.org/pub/sems/ser2-sasi-080108.tar.bz2 
+      (or ser head with patches from the bug tracker at 
+       http://tracker.iptel.org/browse/SER-346 )    
+      and core/etc/ser-sems.sasi.cfg.
 
  5. Start SEMS: