Lucent Technologies DEFINITY Enterprise Communications Server Release 5, CallVisor, ASAI Protocol Reference Instructions Manual

Tunnel Protocol Procedure
Issue  6 June 1997
7-17
Table 7-8. Use of Heartbeat Messages
Reconnect Procedure
If a client believes it has lost connectivity to the server it may close the TCP 
connection and establish a new one.   If the server receives a 
Connection Request 
from a client on a new connection for which it believes there is an existing 
connection, it closes the existing connection and accepts the new one.   When this 
occurs, the server sends an 
Error Notification message on the old...

TCP Tunnel Protocol
7-18Issue  6 June 1997 
words, a client may open link 3 and link 4 simultaneously, but it may not 
open link 3 two times simultaneously.
Table 7-9. Connecting While a Connection Exists
Client
CTI-host, link 3, version 1 DirectionDEFINITY LAN Gateway
definity, version 1
ASAI Data (Q.931 Msg.)
8,0,X,X,8,2 ...
ASAI Data (Q.931 Msg.)
8,0,X,X,8,2 ...
Connection Request was 
received for 
CTI-host, link3 on a 
new connection
Error Notification,
New Connection Made
0,8,0,0
Close (TCP) Close...

Issue  6 June 1997A-1
A
The ECS Mapping to Information
Elements in Third Party Make Call
When an adjunct uses the Third Party Make Call capability to set up a call, the 
ECS maps the request into a request for one of four internal types of calls:
1. User-Classified call
2. Switch-Classified call
3. Direct-Agent call
4. Supervisor-Assist call
The 
CallVisor ASAI Technical Reference explains the attributes of these types of 
calls and their uses.
Adjunct applications are responsible for requesting call...

The ECS Mapping to Information Elements in Third 
Party Make Call
A-2Issue  6 June 1997 
call type and the validation done on IEs. The order in which the ECS checks 
(2a) through (2d) is implementation-specific and may change.
Adjunct applications should ensure that a legal combination of IEs is present 
and should not be written in such a way as to use this ordering.
(3) Once the call type is determined, these information elements are incompatible 
with that call type and the ECS will deny a request...

Issue  6 June 1997A-3
Table A-1. IEs for User-Classified and Switch-Classified
Third Party Make Call Requests 
Call Type
IE User-Classified Switch-Classified
(1)  Calling Number IE (1)  Must be present; 
denied if not.
......................................
(7)  Must be station; denied 
if not.(1)  Must be present; denied 
if not.
......................................
(11)  Must be Split, Hunt, 
Announce, VDN (only 
in an EAS 
environment). Denied if 
not.
(1)  Called Number IE (1)  Must be present;...

The ECS Mapping to Information Elements in Third 
Party Make Call
A-4Issue  6 June 1997 
Domain IE (6) If present, ECS 
processes dest. as 
external. Type must be 
Trunk, or denied.
......................................
Must omit for internal dest.(8) If present, ECS 
processes dest. as 
external. Type must be 
Trunk, or denied.
......................................
Must omit for internal dest.
Number of Rings Call 
Option IEIgnored (7) Presence is optional. 
Default = 10 when not 
present. 
Deny if...

Issue  6 June 1997A-5
Table A-2. IEs for Direct-Agent and Supervisor-Assist 
Third Party Make Call Requests
Call Type
IE Direct-Agent Supervisor-Assist
(1)  Calling Number IE (1)  Must be present; 
denied if not.
......................................
(6)  Must be local station; 
denied if not.(1) Must be present; denied 
if not.
......................................
(6)  Must be local station; 
denied if not.
(1)  Called Number IE (1)  Must be present; 
denied if not....

The ECS Mapping to Information Elements in Third 
Party Make Call
A-6Issue  6 June 1997 
Number of Rings Domain 
IEIgnored if present. Ignored if present.
Priority Call
Call Option IE(8)  Presence is optional. 
Priority call when 
present. Non-priority 
call when not present.(8)  Presence is optional. 
Ignored when present. 
Supv. Assist always 
priority call. Table A-2. IEs for Direct-Agent and Supervisor-Assist 
Third Party Make Call Requests — (Continued)  
Call Type
IE Direct-Agent Supervisor-Assist 

Issue 6 June 1997B-1
B
Message Scenarios
This appendix presents sample scenarios showing the messages exchanged 
between the ECS and an ASAI adjunct processor (AP). A short description of the 
scenario and a figure showing the ECS elements (for example, VDNs, ACD splits, 
or stations) involved in the scenario are also provided with each messaging 
scenario.
Each messaging scenario separates into two columns the ASAI messages 
exchanged. The first column provides the messages originated or sent by the...

Message Scenarios
B-2Issue 6 June 1997 
Figure B-1. Notation for the Messages in this Appendix
The values used for each item within an ASAI message (for example, CRVs, 
call_ids, party_ids, and extension numbers) are for demonstration purposes only 
and can change for different applications. However, the item values illustrate how 
the items are used within a scenario. For example, once a call_id has been 
assigned a value, the assigned value is used to identify the call until the call 
terminates or is...