Hi, > I suppose you would use just normal ISUP to do the call via GMSC. *Ok. * > To act as a VMSC is a completely different thing and would not be possible to accomplish on an asterisk without extensive development in which case you would also need MAP handling. *Ok. MAP will be used to get for example the status/location of the mobile subscriber. I understand that this part is not implemented in Asterisk.* *Have you experienced such a case. If yes, please share your experience? And what about the case of an STP in the place of a GMSC? Thank you.* -- BR Abdelkader Mosbah. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.digium.com/pipermail/asterisk-ss7/attachments/20110208/5628baba/attachment.htm>