Support of the main PBX on the market

PBX Protocol
Aastra/Ericsson MX-ONE/MD-Evolution CSTA phase I
Aastra Nexspan/5000 CSTA phase II
Aastra OpenCom CSTA phase III
Alcatel-Lucent Omni PCX Entreprise

CSTA phase II / SIP

TelServer v2.6 is AAPP certified from OXE R11

Alcatel-Lucent Omni PCX Office

CSTA phase I

TelServer v2.6 is AAPP certified from OXO R10

Asterisk Asterisk Manager API
Enhanced support for Aastra, Snom SIP phones...
Avaya AES JTAPI
Cisco Call Manager JTAPI
Cisco Communications Manager Express SIP/CSTA ECMA TR/87
Siemens Hipath

CSTA phase II or III

Tadiran Coral CSTA phase I
Unify Openscape Office CSTA phase III
Unify Openscape Business CSTA phase III