Cisco adapter cable for electronic hook switch (EHS) Suitable for SDW 5066, SDW 5065, SDW 5036, SDW 5035, SDW 5015, SDW 5016, DW Office, DW Office ML, DW Office Phone, DW Pro 1, DW Pro 1 ML, DW Pro 1 Phone, DW Pro 2, DW Pro 2 ML, DW Pro 2 Phone, SD Office, SD Office ML, SD Pro 1, SD Pro 1 ML, SD Pro 2, SD Pro 2 ML and D 10 Phone.
