Howto:QSIG Interworking Interoperability, Alcatel Omni PCX Enterprise

Summary

Innovaphone QSIG Interworking translates H.323 supplementary services into QSIG supplementary services and vice-versa. This article discusses the interoperability with a distinct 3^rd party product.

This information applies to

• PBX and Gateways with V6

• Omni PCX 4400 Enterprise with Firmware 6.1

More Information

System Requirements

• Innovaphone ISDN protocol settings must be set to ECMA2
• Omni PCX ISDN protocol setting must be set to ISO QSIG

Standards

• Ecma-164 (QSIG-NA), Name Identification/Name Display
• Ecma-174 (QSIG-CF) Call Diversion
• Ecma-178 (QSIG-CT) Call Transfer
• Ecma-186 (QSIG-CC) Call Completion
• Ecma-176 (QSIG-PR), Path Replacement

Limitations

QSIG-CC

• Innovaphone only supports call completion with connection retention.
• Innovaphone only supports call completion without path reservation.

List of Interworked Operations

The Standard refers to a paper listed in the Standard section from above.

The Operation column refers to an explicit message exchange within such a standard.

The Active column tells, whether innovapahone supports this message outbound, i.e. whether innovaphone can invoke the service actively.

The Passive column informs about inbound support for a message exchange.

Standard	Operation	Active	Passive	Notes
QSIG-NA
	CallingName	Yes	Yes
	Called Name	Yes	Yes
	ConnectedName	Yes	Yes
	BusyName	No	No
QSIG-CF
	CheckRestriction	No	Yes
	CallRerouting	No	Yes
	DivertingLegInformation1	Yes	Yes
	DivertingLegInformation2	Yes	Yes
	DivertingLegInformation3	Yes	Yes
QSIG-CT
	CallTransferComplete	Yes	Yes
QSIG-CC				See Note 1
	CcnrRequest	No	No	See Note 1
	CcCancel	No	No	See Note 1
	CcPathReserve	No	No	See Note 1
	CcRingout	No	No	See Note 1
	CcbsRequest	No	No	See Note 1
QSIG-PR				See Note 1
	PathReplacePropose	No	Yes	For trombone connection

Note 1: Call Completion towards innovaphone fails due to a missing CONNECT ACK ISDN message. The Omni PCX does not send this message as reply to the prior CONNECT with ccnrRequest.rr. Call Completion towards the Omni PCX fails, because innovaphone disconnects the call through which it received the ccExecPossible message before it sends out the ccRingout call.