Air To Ground Call Set-Up; Call Maintenance And Termination - Honeywell ASPIRE-400 System Description, Installation And Maintenance Manual

SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL
(3) If an annunciated CS Ground-to-Air call is accepted, the ACD PBX:
(a)
(b)
(4) When a CS Air-to-Ground call is connected, the ACD PBX connects the call through the
Serial voice link to the routed 4-wire port.
K.

Air to Ground Call Set-up

(1) When a new Air-to-Ground SIP call is requested, the ACD PBX:
(a)
(b)
(c)
L.

Call Maintenance and Termination

(1) The ACD PBX responds positively to re-INVITE messages only if there is an active call
with matching Call-ID reference.
(2) If a VoIP call is terminated by air side user action, the ACD:
(a)
(b)
(3) If a VoIP call is terminated by ground side SIP:BYE, the ACD:
EFFECTIVITY
ALL
© Honeywell International Inc. Do not copy without express permission of Honeywell.
ASPIRE-400
2 Absence of call waiting will prevent the new call from being presented to the AES
when a call is already in progress.
Commands the Channel Card to accept the AMBE +2 call set up AND
When established connects the call through the Serial voice link to the routed 4-
wire port.
Commands the safety Channel Card to create a secondary Streaming PDP
Content for the RTP voice stream:
1 To ORT specified INMARSAT VoIP APN
2 Linked to the Primary PDP context,
3 With the specified TFT and if successful:
a Activate by sending a SIP:INVITE to the SIP server with
b MSISDN as the calling party.
4 If unsuccessful, terminate the call by:
a Indicating call failure to user
b Commanding the Channel Card to terminate the Secondary
context.
NOTE:
The ACD PBX populates the following parameters for voice messaging:
1 ICAO Address
2 UDP port number 5060
3 SIP URI: safety Channel Card IMSI prefixed with SBSAFETY sip:
[SBSAFETYimsi]@[sip_domain_name] dialed number: sip:[dialled_
number]@[sip_domain_name].
Call priority: SIP call priority as identified in the SIP resource priority field.
Sends a SIP:BYE
Commands the safety Channel Card to terminate the Secondary context.
No Session Description Protocol (SDP) offer is
required in the SIP:INVITE message for A2G initiated
calls.
23-15-49
3rd rvw Draft as of:
29 January, 2020
Page 2-37
22 Apr 2019