What n/w elemets are involved in USSD ? This topic has 4 replies, 1 voice, and was last updated 14 years, 8 months ago by Mik. Viewing 5 posts - 1 through 5 (of 5 total) Author Posts 11th June 2008 at 15:26 #52708 naveenGuest Unstructured Supplementary Services Data(USSD) requires chnges in the what n/w elemets across the n/w? 11th June 2008 at 16:16 #52709 AbdelGuest Hi naveen, In our network I experienced that both MSC and HLR are involved in both ZTE and Huawei network. So the rest of the vendors might be same. 11th June 2008 at 20:56 #52710 MikGuest Usually all USSD routing is performed in HLR. Here you analyse USSD string and route it to corresponding USSD server. Of course, GT analyse is done on all NE in network 12th June 2008 at 15:35 #52711 naveenGuest Thanks for the info. Just wondering what logical chn do these use over the air interface?? Is it SDCCH? And is there a special pathc that has to be installed for these or they come as built in feature with the vendor equipment?? 12th June 2008 at 19:30 #52712 MikGuest USSD is standart feature supported by default as I’ve met. Author Posts Viewing 5 posts - 1 through 5 (of 5 total) The forum ‘Telecom Design’ is closed to new topics and replies.