Qsig Tunneling; Implementation - 3Com V7122 User Manual

;1 - internal, 3 - mvip, 4 - Network, 8 - h110a, 9 - h110b, 10 - Netref
TDMBusClockSource= 1
[Trunk Configuration]
;e1_euro_isdn=1 t1_isdn=2 ;e1_cas_r2=8 (8 for fcd); e1_trans_62=5
ProtocolType = 5
TraceLevel = 0
; acCLOCK_MASTER_ON =1
ClockMaster= 1
TerminationSide = 1
;acEXTENDED_SUPER_FRAME=0
FramingMethod = 0
;acB8ZS = 0 2 for E1_CAS - FCD
LineCode = 0
WATCHDOGSTATUS = 0
[ SS7_LINK_TABLE ]
FORMAT SS7_LINK_INDEX = SS7_LINK_NAME, SS7_LINK_TRACE_LEVEL,
SS7_LINK_ADMINISTRATIVE_STATE,SS7_LINK_L2_TYPE, SS7_LINK_L3_TYPE,
SS7_LINK_TRUNK_NUMBER,SS7_LINK_TIMESLOT_NUMBER,SS7_LINK_M2UA_IF_ID;
SS7_LINK_TABLE 0 = new_link_0, 0, 2, 1,1,
SS7_LINK_TABLE 1 = new_link_1, 0, 2, 1,1,
SS7_LINK_TABLE 2 = new_link_2, 0, 2, 1, 1, 4,
SS7_LINK_TABLE 3 = new_link_3, 0, 2, 1, 1, 5,
[\SS7_LINK_TABLE]
[ SS7_SIG_IF_GROUP_TABLE ]
FORMAT SS7_SIG_IF_GR_INDEX = SS7_IF_GR_ID,SS7_SIG_SG_MGC, SS7_SIG_LAYER,
SS7_SIG_TRAF_MODE, SS7_SIG_T_REC, SS7_SIG_T_ACK, SS7_SIG_T_HB,
SS7_SIG_MIN_ASP, SS7_SIG_BEHAVIOUR, SS7_LOCAL_SCTP_PORT, SS7_SIG_NETWORK;
SS7_SIG_IF_GROUP_TABLE 4 =
[ \SS7_SIG_IF_GROUP_TABLE ]
[ SS7_SIG_INT_ID_TABLE ]
FORMAT SS7_SIG_IF_ID_INDEX = SS7_SIG_IF_ID_VALUE, SS7_SIG_IF_ID_NAME,
SS7_SIG_IF_ID_OWNER_GROUP, SS7_SIG_IF_ID_LAYER, SS7_SIG_IF_ID_NAI,
SS7_SIG_M3UA_SPC;
SS7_SIG_INT_ID_TABLE 7 = 50, BELFAST12, 4, 2, 0, 0;
SS7_SIG_INT_ID_TABLE 8 = 12, AMSTERDAM, 4, 2, 1, 0;
SS7_SIG_INT_ID_TABLE 9 = 18, ROTERDAM , 4, 2, 2, 0;
SS7_SIG_INT_ID_TABLE 10 = 1, GAUDA
[ \SS7_SIG_INT_ID_TABLE ]

QSIG Tunneling

The gateway supports QSIG tunneling over SIP according to <draft-elwell-sipping-qsig-
tunnel-03>. This method enables all QSIG messages to be sent as raw data in
corresponding SIP messages using a dedicated message body. This mechanism is useful
for two QSIG subscribers (connected to the same / different QSIG PBX) to communicate with
each other over an IP network. Tunneling is supported for both directions (Tel to IP and IP to
Tel).
The term tunneling means that messages are transferred 'as is' to the remote side, without
being converted (QSIG SIP QSIG). The advantage of tunneling over QSIG SIP
interworking is that by using interworking, QSIG functionality can only be partially achieved.
When tunneling is used, all QSIG capabilities are supported, whereas the tunneling medium
(the SIP network) does not need to process these messages.

Implementation

QSIG messages are transferred in SIP messages in a separate Multipurpose Internet Mail
Extensions (MIME) body. Therefore, if a message contains more than one body (for
example, SDP and QSIG), multipart MIME must be used. The Content-Type of the QSIG
tunneled message is 'application/QSIG'. In addition, the gateway adds a Content-Disposition
header in the following format:
330
1, 15,50;
2, 12, 12;
7,18;
3,1;
4,83, 2, 1, 2000, 2000, 30000, 1, 0, 2904, 1;
, 4, 2, 3, 0;
V7122 GatewayUser Guide