Avaya 700513631 Wall mounting adapter for J139, J159, J169 and J179 telephones Features: - Allows wall mounting of J139, J159, J169 and J179 telephones. - Allows vertical desktop mounting of J139, J159, J169 and J179 phones. Compatibility - *******Compatible Phones******** - Avaya J139 12-Key Color IP Phone (700513916) - Avya J159 48 color keys IP telephone (700512394) - Avya J169 - 24-key IP telephone (700513634) - Avaya J179 - 24-key IP telephone (700513569) "