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EOL of SS7 Sigtran - AudioCodes

    https://www.audiocodes.com/media/15299/0366-product-notice-eol-of-ss7-sigtran.pdf
    This Product Notice is a formal announcement by AudioCodes that the SS7 / SIGTRAN functionality provided by AudioCodes' VoIP media gateways has reached End-Of-Life (EOL) status. Effective Date August 2019 Affected Products § Mediant 2000 media gateway § Mediant 3000 media gateway § Mediant 5000 media gateway § Mediant 8000 media gateway

Protocol: SS7-ISUP

    http://www.acacia-net.com/wwwcla/protocol/ss7_isup.htm
    5-15 minutes. When initial group unblocking message is sent. At receipt of group unblocking acknowledgement. Retransmit group unblocking message, alert maintenance personnel, start T21, stop T20. Procedure continues until maintenance intervention occurs. T22. 15-60 seconds. When circuit group reset message is sent.

SS7 - Destination - ISUP Group - ITU - Dialogic Integrated ...

    https://wiki.freepbx.org/display/DIMG/SS7+-+Destination+-+ISUP+Group+-+ITU
    Dialogic > SS7 > SS7 Network > SS7 Stack > SS7 Destination > New SS7 Group. Maximum Objects. 512 ISUP Groups per IMG 2020. Related Topics and Dependencies. The ISUP Group is created under the SS7 Destination object. The ISUP Group contains a set of ISUP parameters that will be utilized during the call setup process.

ISDN User Part (ISUP) | TelecomSpace

    https://www.telecomspace.com/ss7-isup.html
    ISUP (ISDN User Part) defines the messages and protocol used in the establishment and tear down of voice and data calls over the public switched telephone network (PSTN), and to manage the trunk network on which they rely. Despite its name, ISUP is used for both ISDN and non–ISDN calls. In the North American version of SS7, ISUP messages rely exclusively on MTP to …

SS7 protocol | Tutorial for ss7 and its layers (SCCP, TCAP ...

    https://www.cspsprotocol.com/ss7-protocol-ss7-protocol-tutorial/
    The trunks are set up between telephone exchanges to carry protocol messages for voice and signaling. An SS7 trunk has multiple circuits (time slots). You can imagine a trunk like a pipe that has a bundle of wires inside. When a call setup message (ISUP signaling) originates from a switch/exchange, a circuit from the trunk is reserved for that call.

SIP Message Syntax - AudioCodes

    https://www.audiocodes.com/media/13527/sip-message-manipulation-syntax-reference-guide-ver-72.pdf
    AudioCodes Media Gateway, Session Border Controller and MSBR Series SIP Message Syntax Message Manipulation Message Conditions Pre-Parsing Manipulation ... 28633 ISUP syntax typos corrected ("body.isup" and "obci"); ISUP syntax added for SIP 200 OK (ANM) and INFO (FAC) messages; Attaching ISUP Body section updated with ...

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