Alcatel OmniPCX Office Technical Documentation

THIRD PARTY CTI - CSTA APPLICATIONS
Ed. 044/16 Réf. 3EH 21000 BSAA
DESCRIPTION OF THE CSTA LINK (SYSTEM <-> SERVER)
PRESENTATION
The CSTA link is the one which connects the system's CSTA server to the CTI server. It consists of an
Ethernet link supporting a stack of BSD4.3 compatible TCP/IP protocols for the lower layers and OSI-
compliant ACSE/ROSE/ASN1 for the higher layers. The RFC 1122 and RFC 1058 recommendations
are also adhered to.
LINK MANAGEMENT
Initialization
To initialize the link, the CTI server must connect to the transport layer (TCP protocol) on TCP port
2555. Once this connection is made, the application identifies itself at session level (by sending the
character 'B'), the system then responds by sending the character 'P'.
Message Transmission direction Meaning
B CTI Server -> System Identification of the application
P System -> CTI Server CPU
EXIT CTI Server -> System End of connection
Application
Transport
Session
Presentation
ACSE
ROSE
Link
Physical
Network
Transport
Session
Presentation
Application
Link
Physical
CSTA
CTI Server
Alcatel OmniPCX O
ff
ice
ACSE
ROSE
ASN1
Proprietary
Transmit Control Protocol
(TCP)
Internet Protocol
(IP)
802.3
10BASE-T
Network
Transmit Control Protocol
(TCP)
(IP)
ASN1
Proprietary
802.3
Internet Protocol
10BASE-T
CSTA
(IP)

Alcatel OmniPCX Office Specifications

General

VoIP Support	Yes
SIP Support	Yes
ISDN Support	Yes
Analog Support	Yes
Integrated Voice Mail	Yes
Auto Attendant	Yes
Conferencing	Yes
VoIP Protocols	SIP, H.323
Power Supply	100-240 VAC, 50/60 Hz
Network Interfaces	10/100 Mbps Ethernet
Humidity	10% to 90% non-condensing