SAN JOSE, Calif.--(BUSINESS WIRE)--Teledex, the leading worldwide provider of guestroom telephones for the hospitality industry, today announced that its Teledex iPhone SIP display phones (LD4200 series) and non-display SIP phones (ND2200 series) are compliant with key Internet protocol (IP) telephony solutions from Avaya, a leading global provider of business communications applications, systems and services. The Teledex iPhone products help businesses deliver cutting-edge content, applications
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