Release 2.3 SP2 - An Overview of Features

FR-19720 P-Access-Network-Info header in SIP/SIP-I FFT protocol

Brief Description:

SIP P-Access-Network-Info and ISUP Location-Number new interworking feature based on the French Federation of Telecom specification (SIP/SIP-I FFT protocol).

The new interworking feature is supported for both SIP-to-SS7 and SS7-to-SIP call flows. The feature is disabled by default and must be enabled from the WebUI Interworking/SIP to SS7 config page . 

Related Topics:   SIP to SS7 ISUP Interworking

FR19790 IPv4 Type Of Service (ToS) support for SIP interface

Brief Description:

IMG 2020 now supports setting the ToS parameters of the SIP interface. Previously, only the RTP interface could be set. 

SIP ToS level is configured on the WebUI page "Signaling / SIP / SIP IP Address"

Related Topics:  SIP Signaling - IP Address ; Media Type of Service (TOS) Settings   

FR19625 200OK as the only valid response to a SIP Options for determining availability

Brief Description:

Users can now configure the IMG 2020 to determine the availability of an external SIP end-point only on the reception of a SIP-200OK answer from SIP-OPTION keep-alive request message.

Before, the IMG was treating any response as an indication that the external gateway was available.

This can be configured as an option to the SIP Profile object for "Options KeepAlive".

Related Topics:  SIP Profile - Options Method - Busy Out-Keep Alive;  WebGUI pages: SIP Options Method - Busy Out/Keep Alive

FR-19620 IMG 2020 now supports Re-route function upon RTP inactivity detection

Brief Description:

Special e911 call flow for RTP media inactivity detection case.

In case of media inactivity is detected, the IMG will re-enter the routing rules so that the call can be re-tried with another gateway on which IMG is able to receive RTP before closing both call legs.

When the feature is disabled, both incoming and outgoing calls are closed by the IMG instead of by the end user as expected by e911 services.

Related Topics:  Media Inactivity Timers (RTP) ; WebUI page : IP Profile; SIP profile

FR-19653 IMG 2020 can now answer to SIP-181 reception according to 3GPP TS 29.163 specification

Brief Description:

When configured within the SIP-to-SS7 interworking page for ACM and CPG mapping, the IMG will send the SIP-181 (Call is being forwarded) when receiving any of the following SS7 messages:

• ACM with call diversion information not indicating that presentation is not allowed and optional backward call indicators indicate that in-band information is available.

• CPG with call diversion information not indicating that presentation is not allowed and optional backward call indicators indicate that in-band information is available.

Related Topics:  WebUI page: SIP to SS7 ISUP Interworking

FR-19817 IMG 2020 can add "+" sign to the outgoing leg translation table.

Brief Description:

The IMG 2020 has now the capability to add a "+" sign to the dialed number according to the outgoing translation table rule.

Before, the IMG 2020 could only add the "+" sign to all outgoing calls for a particular SIP peer, or add the "+" sign within the incoming translation tables only.

This feature offers more flexibility to keep or remove the ‘+’ sign at the outgoing call leg for the IMG users.

Related Topics:  WebUI page: Outgoing Translation Tables; WebUI page: Translation Element - Incoming

IMG-939 IMG 2020 now uses RPM script to install EMS software and tools

Brief Description:

IMG users will now install & uninstall EMS software and IMG 2020 tools using RPM package manager. 

Related Topics:  Software Upgrade - EMS System