Howto:QSIG Interworking Interoperability Ericsson MD110

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Product name

QSIG Interworking Interoperability List, Ericsson MD110

Applies to

This information applies to

  • PBX and Gateways with V6
  • Ericsson MD110 with Firmware BC12 SP5 (with the special qsig fixes )or Version BC 13 SR 4 (there are the qsig fixes implemented)

More Information

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

System Requirements

  • Innovaphone ISDN protocol settings must be set to ECMA2
  • MD110 ISDN protocol setting must be set to ECMA2

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 Yes Yes
QSIG-CF
CheckRestriction No Yes
CallRerouting Yes Yes
DivertingLegInformation1 Yes Yes
DivertingLegInformation2 Yes Yes
DivertingLegInformation3 Yes Yes
QSIG-CT
CallTransferComplete Yes Yes
QSIG-CC
CcnrRequest Yes Yes
CcCancel Yes Yes
CcPathReserve No Yes
CcRingout Yes Yes
CcbsRequest Yes Yes
QSIG-PR
PathReplacePropose No n.a. For trombone connection

Ericsson Configuration

  • The Isdn connection to the innovaphone Gateway must be set to ISO-QSIG (that's the ecma2 interpretation at Ericsson side).
  • The System parameter 223 must be set to 7 (The parameter in the setup is called PARNUM)
  • The parameter RODAP filed VARO , value H'5xxxxxxxxxx (change to 5 , all other numbers remains the same)
  • For having ringtone " send ring tone" the parameter VARC must be changed.

In the 3rd byte the first bit must be set to 1. For example 00000310 is fine (because the 3rd byte is set to 3 and 3 is binary 0000011 and so the first bit (bit 0) ist equal to 1).


Note:

The system parameter (PARNUM) is system wide and therefore has to be changed on all extensions in the MD110.

With BC13 SR3 all qsig inteworking features are working except call back from the MD110 to innovaphone phones - therefore you will need the latest Ericsson software BC13 SR4


Known Problems

A CGPN.Out Map must be configured at the ISDN Interface towards the MD110, in order to turn CGPNs, belonging to a private-numbering-plan into CGPNs, belonging to an unknown-numbering-plan. Without this configuration step Call Completion will likely be failing (see following Screenshot).

Unknown-Numbering.png

Related External Links

Howto:How To Configure QSIG Interworking