Hi,Sometimes one of the BRI lines gets this q921 messages:ISDN BR0/2/1 Q921: L2_EstablishDataLink: sending SABMEISDN BR0/2/1 Q921: User TX -> RRf sapi=0 tei=123 nr=2ISDN BR0/2/1 Q921: User TX -> SABMEp sapi=0 tei=123ISDN BR0/2/1 Q921: User RX <- SABM...