Hey ML, The role of Ser and * are very different. * has been built as a PBX replacement first and foremost and so handles VOIP --> PSTN integration, has a VM/conference/meetme etc server (although SEMS is becoming more and more advanced all the time) and performs transcoding etc. However, it's SIP implementation is difficult to work with for a high volume of users, it doesn't handle presence, doesn't support multiple logons by the same client etc. SER is a fantastically performing high volume SIP proxy/redirect/registration agent etc with very flexible call processing and route processing logic. Many people on this list use Ser as the point of contact for all SIP UA's, and then forward to * or a commercial product to do PSTN gateway relays. Hope this helps Dave ________________________________ From: serusers-bounces(a)iptel.org [mailto:serusers-bounces@lists.iptel.org] On Behalf Of muralikrishnan lakshmanan Sent: 04 August 2004 05:07 To: serusers(a)lists.iptel.org Subject: [Serusers] how to use ser Hello all, Im new in this group. Im using asterisk. I don't know where I have to use "ser". What is the part of "ser" in asterisk ? How to use "ser"? if anyone knows please mail me. Thanks in advance Muralikrishnan L Software Engineer Trainee Calsoft-Elnet Software City Taramani