BT MediaNet Connect 34 Silver and BT Connect MediaNet 155 Silver provide the same functionality as BT MediaNet Connect 34 and BT MediaNet Connect 155 respectively. However, BT MediaNet Connect 34 Silver and BT MediaNet Connect 155 Silver are routed over a resilient SDH network to provide a far higher level of reliability. Service should be automatically re-routed in the case of a network failure on the circuit.