Transcript
Technical Bulletin 684 Technical Bulletin 684 - Mediatrix ISDN Gateways: supported Supplementary- and other interesting ISDN Features/Services
June, 2014
Proprietary 2014 Media5 Corporation
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Table of Contents Introduction ................................................................................................................................................................. 3 Supported supplementary services ............................................................................................................................ 4 Additional Features..................................................................................................................................................... 6
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Introduction ISDN (Integrated Services for Digital Network) was first defined in 1988. It is a set of communication standards for simultaneous digital transmission of voice, video, data and other network services. It uses the same, traditional circuits of the public switched telephone network. Although there has been a lot of standardization, we can find different implementations in countries all over the world. From the customer’s perspective, many of the ISDN provided features are being used with different “marketing names”. In this document we are presenting all ISDN features already implemented in Mediatrix Gateways.
There are different types of ISDN interfaces available: a)
BRI (2x b channels + 1 Data channel)
b)
PRI (23 (USA) or 30 (EUROPE) b channels + 1 Data channel)
This document has been created based on Firmware DGW 2.0.28.504 Please consult the technical specs of the respective gateway to confirm that the feature you are interested in is supported on the specific platform and protocol.
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Supported supplementary services Name
Description
CNIP
Service offered to the called user and which provides the name of the calling user (calling party name) to the called user
CLIP
Calling Line Information Presentation: when you call somebody, your telephone number is transmitted to the other phone
CLIR
Parameters
Calling Line Information Restriction: offered to the calling party to restrict presentation of the calling party's ISDN number to the called party.
UserOnly: Sends a Calling Number IE that contains the calling number digits when acting as the User UNI –side (Endpoint Type drop-down menu set to TE) otherwise the Calling Number IE is not sent UserOnly in QSIG protocol: Sends a Calling Number IE that contains the calling number digits Enable: Sends a Calling Number IE that contains the calling number digits Disable: The Calling Number IE is never sent Enable: For all ISDN signaling protocols except QSIG: • On a TE interface (Endpoint Type dropdown menu set to TE) at the originating network side, when sending a SETUP message with a Calling Party Number (CPN) IE, the Presentation Indicator (PI) is set to "Restricted". The calling party number itself is included in the CPN IE if available. • On a NT interface (Endpoint Type dropdown menu set to NT) at the originating network side, when receiving a SETUP message with a CPN IE, the PI is set to "Restricted". The calling party number itself is forwarded. For the QSIG signaling protocol (PRI/BRI interface Signalling Protocol drop-down is set to QSIG): • Sending a SETUP message: The PI is set to "Restricted" in the CPN IE inserted in the SETUP message sent to the ISDN, unless the CLIR override option is set. However, even if PI is set to "Restricted", the calling number is included in the CPN IE. • Receiving a SETUP message: If PI is set in the received message, the calling party number is removed, unless the CLIR override option is set. Disable: disables the CLIR service Enable: In incoming calls, when the Calling Number IE is present and its presentation indicator is set to “restricted”, the restriction is overridden and the calling party number is presented to the called user
CLIR override
Disable: The restriction is not overridden Page 4 of 7
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COLR
Connected Line Identification Presentation: optional service offered at the originating interface by the NT to the TE
Connected Number Information Element Restriction
COLR Override
Enable: Sends a Connected Number IE within the CONNECT message, which contains the connected number digits once the transformation of the routing table has been applied. Disable: The Connected Number IE is never sent. Enable: When activated at the User UNIside (Endpoint Type drop-down menu set to TE), marks the Connected Number IE with a 'restricted' Presentation Indicator, which keeps privacy over the connected number digits. This option has no effect when activated at the Network UNI-side (Endpoint Type drop-down menu set to NT). Disable: No restriction is applied. Enable: When activated at the Network UNI-side (Endpoint Type drop-down menu set to NT), the connected number digits are delivered even if the Presentation Indicator is set to 'restricted'. This option has no effect when activated at the User UNI-side (Endpoint Type drop-down menu set to TE). This is a national option designed for emergency services. Disable: No restriction override is applied
Outgoing Notify parameters
Remote hold: Sent when the remote peer holds the call Remote Retrieval: Sent when the remote peer retrieves the call
Maintenance Service
GraceFul: The call proceeds normally until the user clears the call. The associated bearer is then set to maintenance. (default) Abrupt: The call is terminated immediately and set to maintenance
AOC-E (from SIP to ISDN)
Advice of Charge at the End of the Call
No: The AOC-E support is disabled. No information is forwarded to the peer interface Transparent: On an NT interface, the information is sent as received from the network. No information is sent if the network does not provide information. On a TE interface, the information is forwarded to the peer interface if AOC messages are received from the network. Automatic: On an NT interface, always send the information. If the network does not provide information, 'noChargeAvailable' is sent. On a TE interface, the information is forwarded to the peer interface if AOC messages are received from the network. Explicit: On an NT interface, always send the information if the phone requests AOC on a per-call basis. 'noChargeAvailable' is sent if the network does not provide
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0684 information. If the phone does not request AOC on a per-call basis, no information is sent. On a TE interface, send an AOC request to the network. If the network rejects the request, no information is forwarded to the peer interface. Otherwise, the information is forwarded to the peer interface if AOC messages are received from the network. AoC-D (from SIP to ISDN)
Advince of Charge during the Call
Options like AoC-E
CFU, CFNR, CFB
Call Forward on Unavailable,
Diversion Indication in SIP is supported
Call Forward on No Answer, Call Forward on Busy User-User signaling
Is being used by the Mediatrix gateways to translate the SIP calling party name into an incoming ISDN information
Hook-Flash Keypad
The keypad string to be considered as hook-flash
Can be configured
MSN
Multiple subscriber numbers
Can be configured in the Call Router section of the Mediatrix units to route the incoming calls to different ports Unsupported: Rerouting requests received are rejected. A reject answer is sent to the private network. Relay Reroute: Rerouting requests are relayed as received to the public network side. If the peer rejects or does not support the reroute request, the ISDN service may initiate a new call to process the rerouting request locally. Process Locally: Received Rerouting requests are not relayed to the public network side. The ISDN service attempts to connect to the rerouted address by initiating a new call.
Call Rerouting
Call rerouting is being processed in the provider’s network. This allows the called party to send an instruction to re-route the call to somebody else from within the public network without losing an ISDN b-channel.
Additional Features
Support of different Endpoint types
You can set a port to either TE (Terminal Equipment) or NT (Network Termination) mode
Clock Mode
Auto: The setting is derived from the endpoint type. • NT: clock master • TE: clock slave Master: The interface generates the clock. Slave: The interface accepts the clock from the line.
Date/Time
Provides date and time to ISDN devices connected to an NT mode BRI port
IP Sync
Services such as isdn video calls might Page 6 of 7
0684 need a stable clock and both parties being in sync. “slave” devices can connect through IP to “master clock” device and use it as clock source. DDI
Direct Dial In numbers
Routing can be configured in the Call Router section
HOLD / Retrieve
It allows an ISDN endpoint to perform a second call
Available only for a BRI interface in NT Point to Multipoint configuration.
Clock reference
A clock reference is needed to package the ISDN voice frames. It can be generated internally or obtained from an external source (e.g., public ISDN). If you do have an interface connected to a
The clock reference may either be provided by the network or by one of the BRI ports of the Mediatrix unit.
public ISDN, select the clock reference from this interface. The clock reference provides error-free ISDN data and fax transmission.
Overlap dialing
You can enable this to collect the called party number digit by digit and send it at once to the other side
Auto-configuration ISDN
The ISDN Auto-configuration feature allows you to detect and to configure all ISDN interfaces so that the ISDN link goes up and becomes usable with a minimal user interaction. When launching an autoconfiguration process, it stops automatically when all interfaces have been tested. For each interface, the autoconfiguration process is considered successful when the link becomes up or a failure when all combinations have been tried without having a link up.
PRI Statistics
The Mediatrix unit collects meaningful statistics for each PRI digital card that can be read via the web interface. These statistics are also available via SNMP and CLI.
Link establishment strategy
In some cases, the data Link (Layer 1) might go into standby mode, to save power.
OnDemand: When the data link is shut down, the unit establishes a new link only when required. Permanent: When the data link is shut down, the unit immediately attempts to establish a new link.
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