Need to Establish E1 Link Nortel option 11 RLS 25 with Avaya CM, there is no package in Nortel for ISGF, pls guide me how can I configure the link? I tried ESig but SCH6358 (Interface change is not allowed for UIPE D channels) but I am adding not changing D Channel in LD 17 , when I tried ESS4 it’s enable only 24 B channel & not display EXT number which not acceptable for my customer, I think this ESS4 support only T1 not E1, any support will be appreciated.