: The central telephony engine that processes phone calls, routing, and media streams.
Avaya JTAPI operates entirely asynchronously using an event-driven pattern. To track state changes (such as an incoming call or a user hanging up), observers must be attached to target resources. Types of Observers
: Invocations in JTAPI are converted into CSTA messages, which are then sent to the AES TSAPI Service , and finally translated to ASAI for the Communication Manager.
Your application server requires bidirectional TCP/IP communication with the Avaya AES instance. Ensure your network administrators open the standard secure AES JTAPI ports: : Port 5628 Encrypted (TLS) TSAPI/JTAPI Service Link : Port 5629 3. Provider Initialization and Authentication avaya jtapi programmer 39-s guide
: Network access to the AES server IP address and configured ports (typically DMCC/JTAPI secure port 450 or unsecure port 1050). Required Dependencies
Avaya supports two listener architectures: standard and the newer Listeners introduced in JTAPI 1.4. For robustness and broad compatibility with legacy Avaya packages, standard Observers are highly documented and commonly used. Implementing a TerminalObserver for Inbound Calls
The Avaya JTAPI Programmer's Guide is a comprehensive resource for developers working with Avaya's Java Telephony API (JTAPI). JTAPI is a set of Java APIs that allows developers to create telephony applications that integrate with Avaya's communication servers. : The central telephony engine that processes phone
Once your provider is active, you can send command executions to Avaya CM to interact with active phone calls. Making an Outbound Call (First-Party Call Control)
import javax.telephony.callcenter.Agent; import javax.telephony.callcenter.AgentTerminal; public void changeAgentState(String extension, int targetState) try Terminal terminal = provider.getTerminal(extension); if (terminal instanceof AgentTerminal) AgentTerminal agentTerm = (AgentTerminal) terminal; Agent[] agents = agentTerm.getAgents(); if (agents != null && agents.length > 0) // Change state for the active agent session on that phone agents[0].setState(targetState, Agent.MODE_NONE, 0, null); System.out.println("Agent state changed successfully."); catch (Exception e) System.err.println("Failed to update agent state: " + e.getMessage()); Use code with caution.
[ Java Application ] │ (Standard JTAPI / Avaya Extensions) [ Avaya JTAPI Client (JAR) ] │ (TCP/IP Secure Link via TSAPI Service) [ Avaya AES Server ] │ (ASA / Proprietary Link) [ Avaya Communication Manager (CM) ] 2. Setting Up Your Development Environment Types of Observers : Invocations in JTAPI are
Represents the relationship between a Call object and an Address object.
: Typically corresponds to a telephone directory number (extension) or a VDN.