ISDN - ***

<p>Our ISDN is not working once again. ********** </p> <p>It was off on 5 May 2016 and 18 May 2016 and again now 29 June 2016.</p> <p>I received reference for this recurring fault this morning 13cCTI290616.</p> <p>We are supposed to have 2 lines per ISDN Number but now have 2 less.</p> <p>Being a business this is completely unacceptable as we desperately need the extra 2 lines.</p>