[Serusers] SEMS Voicemail Vs SER vm module

Dear all, I am a newbie in SIP please excuse me, for my poor questions. As I am working to add Voicemail service on my SER proxy. I am very much confuse about how to use SEMS module with SER. As according to "SIP Express Router v0.11 --Admin Guide" SEMS is required to provide voicemail capability in SIP server. As i have downloaded "sems-0.1.0.tar.gz" and installed in my machine where I have "ser-0.8.12" as a sip server. after that And I have changed my ser.cfg scripts to provide voicemail capabilities and to load vm module available in SER. Now I get stuck How I have to use SEMS module ( I mean to say that "ans_machine" available in sems ) what is the difference & similarity between SEMS Voicemail and SER vm module. On what basis SEMS Voicemail and SER communicate to each other. Is their any configuration file is required inside the SEMS like SER (ex. ser.cfg). what is the proper step to perform a testing of voice mail using these modules.. Please excuse me if i have asked something wrong and please teach me about my queries. Thanks in advance. koyama --------------------------------- Do you Yahoo!? New and Improved Yahoo! Mail - 100MB free storage!