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c6ea5d8244134a269d02b41d6fbd6536 | 101 913 | 7.5 ETSI TIPHON specifications | ETSI project TIPHON is producing technical specifications for interworking between IP networks and SCNs. The following scenarios are being considered: - a call between two users in IP networks (global IP-telephony service); - a call from user in an IP network to a user in an SCN; - a call from a user in an SCN to a use... |
c6ea5d8244134a269d02b41d6fbd6536 | 101 913 | 7.6 Terminal specifications from TIA TR-41.3.4 | TIA TR-41.3.4 is producing a profile specification for terminals attached to IP networks, TIA/EIA/IS-811 [67]. As far as control is concerned, the profile specification allows for H.323, SIP or H.248. In each case the document specifies use of the protocols. |
c6ea5d8244134a269d02b41d6fbd6536 | 101 913 | 8 Interworking of PISNs and IP networks via a gateway | With an interworking scenario the circuit and IP networks operate as peers. The basic interworking scenario is a call between a user connected to a SCN and a user connected to an IP network. Instances of interworking between circuit and IP networks can be concatenated, e.g.: - circuit-IP-circuit; - IP-circuit-IP. In ei... |
c6ea5d8244134a269d02b41d6fbd6536 | 101 913 | 8.1 Architecture | An equipment that performs interworking between a PISN and an IP network can be regarded as a PINX. Figure 18 shows part of the PINX reference configuration from ECMA-133 [1] superimposed onto the generic functional architecture for interworking from figure 9. The relationship between functional entities from the gener... |
c6ea5d8244134a269d02b41d6fbd6536 | 101 913 | 8.2 Signalling | From 8.1 it can be seen that the IW functional entity is required to perform signalling interworking between signalling at the Q reference point (e.g., QSIG) and IP network session control signalling. If H.323 is used in the IP network, the IW functional entity needs to perform signalling interworking between QSIG and ... |
c6ea5d8244134a269d02b41d6fbd6536 | 101 913 | 8.3 Naming and addressing | |
c6ea5d8244134a269d02b41d6fbd6536 | 101 913 | 8.3.1 Naming and addressing in PISNs | In accordance with ECMA-155/ISO/IEC 11571, addressing in a PISN is by means of numbers conforming to either E.164 or a Private Numbering Plan (PNP). Numbers can also be represented in an implicit format, where prefix digits or other means within the actual number identify the numbering plan, but the numbering plan is s... |
c6ea5d8244134a269d02b41d6fbd6536 | 101 913 | 8.3.2 Naming and addressing in IP networks | See clause 7.2.2 (H.323) and clause 7.4.3 (SIP). 8.3.3 Naming and addressing interworking when H.323 used in the IP network H.323 supports the use of E.164, PNP and implicit numbers as alias addresses. |
c6ea5d8244134a269d02b41d6fbd6536 | 101 913 | 8.3.3.1 Interworking and PNP numbers | A characteristic of a PNP is that it belongs to a CN administration and numbers from that PNP have significance only within that administrative domain. An administrative domain may cover an entire CN or only part of a CN. When an IP network is a public network, it is necessarily a different administrative domain from t... |
c6ea5d8244134a269d02b41d6fbd6536 | 101 913 | 8.3.3.2 Interworking and E.164 numbers | E.164 numbers can be passed between a PISN and a IP network, provided they are of a sufficiently high level to have meaning in both networks. An international number is necessary if the gateway is at a national boundary, but in other situations a national number is normally sufficient. In some cases a subscriber number... |
c6ea5d8244134a269d02b41d6fbd6536 | 101 913 | 8.3.3.3 Other forms of alias in the IP network | Any other form of alias in the IP network cannot be passed to a PISN and is required to be translated into a telephone number having meaning in the PISN. |
c6ea5d8244134a269d02b41d6fbd6536 | 101 913 | 8.3.3.4 Implicit forms of number | Implicit forms of telephone number can be passed between a PISN and an IP network subject to having meaning in the two networks and subject to the considerations above for PNP and E.164 numbers. 8.3.4 Naming and addressing interworking when SIP used in the IP network Some of the considerations of clause 8.3.3 for H.323... |
c6ea5d8244134a269d02b41d6fbd6536 | 101 913 | 8.4 Supplementary services | |
c6ea5d8244134a269d02b41d6fbd6536 | 101 913 | 8.4.1 H.323 supplementary services | For each of the H.450 supplementary services listed in clause 7.2.3, table 4 shows where there is potential for interworking with corresponding QSIG supplementary services. Table 4: Potential for interworking between H.450 supplementary services and QSIG supplementary services H.450 supplementary service QSIG supplemen... |
c6ea5d8244134a269d02b41d6fbd6536 | 101 913 | 8.4.2 SIP supplementary services | Where consensus has been achieved in IETF and there is potential for interworking of SIP supplementary services with equivalent QSIG supplementary services, the method of interworking could be a subject for standardization by ECMA. |
c6ea5d8244134a269d02b41d6fbd6536 | 101 913 | 8.5 Security | Security aspects of interworking require further study. ETSI ETSI TR 101 913 V1.1.1 (2001-05) 42 |
c6ea5d8244134a269d02b41d6fbd6536 | 101 913 | 8.6 Quality of service | QoS aspects of interworking require further study. |
c6ea5d8244134a269d02b41d6fbd6536 | 101 913 | 8.7 Mobility | Mobility aspects of interworking require further study. |
c6ea5d8244134a269d02b41d6fbd6536 | 101 913 | 8.8 Network management | Network management aspects of interworking require further study. |
c6ea5d8244134a269d02b41d6fbd6536 | 101 913 | 8.9 Aspects requiring further study or standardization work | Further work on interworking between PISNs and IP networks could focus in more detail on the following aspects, taking into account both ITU-T Recommendations (ITU-T Recommendation H.323 [24] family) and IETF standards (SIP etc.) in the IP network: - Protocol interworking between QSIG and H.323/SIP. For basic call prot... |
c6ea5d8244134a269d02b41d6fbd6536 | 101 913 | 9 Interconnection of remote PISNs via an IP network | This clause explores different methods of interconnecting remote PISNs (or two parts of the same PISN) via an IP network. As described in clause 8, concatenated instances of interworking at a gateway can be used to achieve the interconnection of remote SCNs via an IP network. In particular, this approach can be applied... |
c6ea5d8244134a269d02b41d6fbd6536 | 101 913 | 9.1 Classification of scenarios for the interconnection of PISNs | Concatenated instances of interworking at a gateway is equivalent to the concatenation concept described in ECMA TR/57 [12] (known as the concatenation scenario in ECMA-133 [1]). In ECMA TR/57 [12] the alternative to the concatenation concept is the overlay concept (known as the overlay scenario in ECMA-133 [1]). With ... |
c6ea5d8244134a269d02b41d6fbd6536 | 101 913 | 9.3.1 Architecture | With this type of scenario, PISN signalling information (QSIG) is carried over a reliable transport protocol such as TCP or, if added functionality is required, a common signalling transport protocol, as introduced in RFC 2719 [53] ("Framework architecture for signalling transport") from the SIGTRAN group in IETF. A br... |
c6ea5d8244134a269d02b41d6fbd6536 | 101 913 | 9.3.2 Aspects requiring further study or standardization work | Solution 1 for QSIG tunnelling is particularly suited to static scenarios where an IPL with a fixed number of UQ-channels exists on a semi-permanent basis. The setting of static pre-conditions then is mandatory. However, since the parameters and their values have local significance only, there is no need for standardiz... |
c6ea5d8244134a269d02b41d6fbd6536 | 101 913 | 9.4.1 Architecture | With this type of scenario an H.323 or SIP session is established between two PINXs to provide an IPL. Within the context of this session, resource control can be used to establish media streams to transport UQ-channels. QSIG is tunnelled within the session control protocol, i.e., within the application layer. For H.32... |
c6ea5d8244134a269d02b41d6fbd6536 | 101 913 | 9.4.2 Aspects requiring further study or standardization work | Using the generic tunnelling mechanism in ITU-T Recommendations H.323 [70], H.225.0 [18] version 4, particular scenarios identified as being useful could be standardized. Standards should focus on the following aspects: - Mapping matrix and bearer conditioning. - ScenSIG information flows (if applicable) and the means ... |
c6ea5d8244134a269d02b41d6fbd6536 | 101 913 | 9.5 Solution 3 - enhanced QSIG in the IP network | |
c6ea5d8244134a269d02b41d6fbd6536 | 101 913 | 9.5.1 Architecture | Solution 3 uses an enhanced QSIG ("QSIG + ") as the session control protocol in the IP network in place of existing session control protocols (H.225.0 or SIP). Whereas QSIG includes negotiation of a circuit mode bearer (e.g., a B-channel), QSIG + needs to negotiate resources (e.g., port numbers) for running a resource ... |
c6ea5d8244134a269d02b41d6fbd6536 | 101 913 | 9.5.2 Aspects requiring further study or standardization work | This scenario requires the specification of the QSIG + protocol in the form of deviations from QSIG. Other aspects that would require study include security, QoS and network management. Naming and addressing is unlikely to be a problem. 10 Connection of telephones to a PINX via an IP network Figure 1 in clause 5.1 show... |
c6ea5d8244134a269d02b41d6fbd6536 | 101 913 | 10.1 Architecture | In the case of gateway type 2, an "end-to-end" signalling protocol (H.323 or SIP) is used in the IP network, and either the telephone (in the case of an IP telephone) or the telephone in combination with a gateway type 1 has to terminate this signalling protocol. Gateway type 2 is discussed in clause 8. NOTE: Although ... |
c6ea5d8244134a269d02b41d6fbd6536 | 101 913 | 10.2 Aspect requiring standardization work | Further work on connecting telephones to a PINX via an IP network could focus on the following aspects: - Requirements for VPNs for connecting telephones to PINXs via public IP networks, including aspects such as tunnelling and security. - Are the candidate protocols for the J interface (H.248, MGCP) sufficient to prov... |
c6ea5d8244134a269d02b41d6fbd6536 | 101 913 | 11 Summary | The present document has examined the following: - general principles of multimedia communication over an IP network; - standards in support of multimedia communication over an IP network; - interworking between PISNs and IP networks via a gateway; - the interconnection of remote PISNs via an IP network (three possible... |
12e2020ea1b50880745a06e6df10bf86 | 101 854 | 1 Scope | The present document gives, initially, a basic overview of how a fixed point-to-point system is allocated an EIRP guaranteeing predetermined link availability. It then reviews the methodology for deriving the parameters necessary for the sharing of FS systems in an environment with different equipment classes and capac... |
12e2020ea1b50880745a06e6df10bf86 | 101 854 | 2 References | |
12e2020ea1b50880745a06e6df10bf86 | 101 854 | 2.1 Normative references | Normative references are not applicable in the present document. |
12e2020ea1b50880745a06e6df10bf86 | 101 854 | 2.2 Informative references | References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the referenced document (including any amendments) applies. NOTE: While any hyperlinks i... |
12e2020ea1b50880745a06e6df10bf86 | 101 854 | 3 Definition of terms, symbols and abbreviations | |
12e2020ea1b50880745a06e6df10bf86 | 101 854 | 3.1 Terms | Void. |
12e2020ea1b50880745a06e6df10bf86 | 101 854 | 3.2 Symbols | For the purposes of the present document, the following symbols apply: dB deciBel dBW deciBel relative to one Watt dBW/Hz deciBel relative to one Watt per Hertz fn Nyquist frequency GHz GigaHertz Hz Hertz k boltzmann's constant MHz MegaHertz Mbit/s Megabit per second N Modulation scheme rof Cosine roll-off factor T Tem... |
12e2020ea1b50880745a06e6df10bf86 | 101 854 | 3.3 Abbreviations | For the purposes of the present document, the following abbreviations apply: ACM Adaptive Code and Modulation ATPC Automatic Transmit Power Control BB BroadBand BCA Bands and Carriers Aggregation BER Bit Error Rate BW(U) BandWidth Unwanted BW(W) BandWidth Wanted C/I Carrier to Interference CCDP Co-Channel Dual Polariza... |
12e2020ea1b50880745a06e6df10bf86 | 101 854 | 4.1 The Link Budget | |
12e2020ea1b50880745a06e6df10bf86 | 101 854 | 4.1.1 Introduction | A link budget ensures that the Equivalent Isotropically Radiated Power (EIRP) allocated to the transmitter maintains a pre-determined level of service defined by error performance and availability. For example, a Bit Error Rate (BER) better than 10-6 and desired availability (usually at least 99,99 % of time are common... |
12e2020ea1b50880745a06e6df10bf86 | 101 854 | 4.1.2 Receiver input level | The reference sensitivity calculated using the methodologies shown in tables 1 and 2 may be used as a theoretical guide figure. The level of reference sensitivity in most practical cases will be within a few dB of this theoretical level. When best practice noise figure and fixed losses are used in the calculation most,... |
12e2020ea1b50880745a06e6df10bf86 | 101 854 | 4.1.3 Fade margin (FM) | The two main factors considered that cause the wanted signal to fade are multipath clear air fading and rain fade. Multipath clear air fading is considered dominant below about 10 GHz and rain fade is dominant above about 15 GHz. Consequently, depending on the frequency band under consideration, the multipath, rain, or... |
12e2020ea1b50880745a06e6df10bf86 | 101 854 | 4.2 Interference assessment | |
12e2020ea1b50880745a06e6df10bf86 | 101 854 | 4.2.1 General | The radio link to be assigned needs to be co-ordinated with all existing links within a defined co-ordination zone. Interference levels into/from the new link need to be assessed and compared against defined limits, ERC/REC(01)05 [i.10] gives common guidelines on limits for use in typical link planning. The co-ordinati... |
12e2020ea1b50880745a06e6df10bf86 | 101 854 | 4.2.2 Wanted to Unwanted (W/U) ratios | Wanted to Unwanted (W/U) ratios are determined for each single interferer combination of wanted and unwanted signal types. In a noise limited assignment system the correct inclusion of these figures, into the assignment link budget calculation, will limit the increase in noise floor, caused by interference between FS s... |
12e2020ea1b50880745a06e6df10bf86 | 101 854 | 4.2.3 Receiver selectivity evaluation | An overall receiver selectivity mask for a given system type, obtained by a combination of RF, IF and base band filtering, can, in theory, be derived from the corresponding transmitter spectrum mask. It is common practice for digitally modulated systems to have Tx and Rx channel shaping such that, as far as possible, t... |
12e2020ea1b50880745a06e6df10bf86 | 101 854 | 4.2.4 Net Filter Discrimination (NFD) | It is common practice in co-existence studies between transmitters and receivers of different symbol rate and modulation formats to use the concept of Net Filter Discrimination (NFD). NFD is defined in Recommendation ITU-R F.746 [i.3] as (see notes 1 and 2): NFD = ... |
12e2020ea1b50880745a06e6df10bf86 | 101 854 | 4.2.5 The Carrier to Interference (C/I) ratio in mixed payload environment | Figure 3 shows NFD values plotted against frequency separation. Values for mixed systems can be calculated and are shown on the same graph. Where the transmission bandwidth exceeds receiver bandwidth i.e. not all the transmitted power falls within the receiver bandwidth, a factor equal to 10 x log (bandwidth of interfe... |
12e2020ea1b50880745a06e6df10bf86 | 101 854 | 4.2.6 Evaluation of the Wanted to Unwanted (W/U) ratios | NFD is evaluated at all possible frequency offsets and for all possible Tx and Rx system combinations. Once calculated, the values are subtracted from the co-channel or in mixed systems, a co-channel-equivalent (i.e. when BW(U) > BW(W), taking into account the bandwith ratio as shown in clause 4.2.5), W/U (see clause 4... |
12e2020ea1b50880745a06e6df10bf86 | 101 854 | 5 Interference limited assignments | The noise limited approach described earlier makes two assumptions regarding the number of multiple interferers and in addition it also sets a pre-determined level of noise floor degradation. Both of these elements can impose limitations and can, in some cases, be overcome by the adoption of an interference limited app... |
12e2020ea1b50880745a06e6df10bf86 | 101 854 | 6 Summary | The present document has concentrated on equipment performance and not considered the major contribution to spectrum engineering made by the antenna. Obviously parameters such as off axis and cross-polar performance of antennas in a mixed FS environment significantly affect the level of interference experienced by a vi... |
03e7929598a1ac06c9c13610db0c068a | 101 895 | 1 Scope | The present document defines the stage one of the Message Waiting Indication (MWI) supplementary service for the pan-European network as provided by European telecommunications operators. Stage one is an overall service description from the user's point of view (see ITU-T Recommendation I.130 [1]), but does not deal wi... |
03e7929598a1ac06c9c13610db0c068a | 101 895 | 2 References | For the purposes of this Technical Report (TR) the following references apply: [1] ITU-T Recommendation I.130 (1988): "Method for the characterization of telecommunication services supported by an ISDN and network capabilities of an ISDN". [2] ETSI ETS 300 650: "Integrated Services Digital Network (ISDN); Message Waiti... |
03e7929598a1ac06c9c13610db0c068a | 101 895 | 3 Definitions and abbreviations | |
03e7929598a1ac06c9c13610db0c068a | 101 895 | 3.1 Definitions | For the purposes of the present document, the following terms and definitions apply: Basic Telephone: standard DTMF telephone without display having the normal 0 - 9, * and # keypad Confirmation Message: it is used to confirm that a specific action has taken place and may also be used implicitly to prompt for user digi... |
03e7929598a1ac06c9c13610db0c068a | 101 895 | 3.2 Abbreviations | For the purposes of the present document, the following abbreviations apply: CU Controlling User DTMF Dual Tone Multi Frequency ISDN Integrated Services Digital Network MWI Message Waiting Indication PNO Public Network Operator PSTN Public Switched Telephone Network RU Receiving User SDSS Server Display and Script Serv... |
03e7929598a1ac06c9c13610db0c068a | 101 895 | 4 Description | The Message Waiting Indication (MWI) supplementary service enables a receiving user (RU) to be informed that there are one or more messages waiting in a message system. The MWI supplementary service is typically used between a controlling user (CU, e.g. mailbox provider) and a user of the message service provided (rece... |
03e7929598a1ac06c9c13610db0c068a | 101 895 | 5 Procedures | |
03e7929598a1ac06c9c13610db0c068a | 101 895 | 5.1 Provision and withdrawal | The MWI supplementary service shall be provided to the receiving user after prior arrangement with the MWI service provider or, as a network operator option, generally available. The MWI supplementary service shall be withdrawn at the receiving user's request, or for administrative reasons. • In the case of notificatio... |
03e7929598a1ac06c9c13610db0c068a | 101 895 | 5.2 Normal procedures | |
03e7929598a1ac06c9c13610db0c068a | 101 895 | 5.2.1 Registration and erasure | Not applicable. |
03e7929598a1ac06c9c13610db0c068a | 101 895 | 5.2.2 Activation and deactivation | In order to allow the receiving user to be appropriately notified, it is assumed that actions need to be undertaken by the controlling user: • activation of the MWI supplementary service for a specific receiving user; • deactivation of the MWI supplementary service for a specific receiving user. Several controlling use... |
03e7929598a1ac06c9c13610db0c068a | 101 895 | 5.2.3 Invocation and Operation | From the receiving user point of view, three modes of invocation are possible: • immediate mode: invocation as soon as activation/deactivation of MWI has been requested by the controlling user; or • deferred mode: invocation when the receiving user makes an outgoing call attempt; • combined mode: i.e. both immediate an... |
03e7929598a1ac06c9c13610db0c068a | 101 895 | 5.2.3.1 In case of an activation | If the immediate mode applies, then after the MWI supplementary service has been activated by the controlling user, the MWI supplementary service shall be invoked immediately and the network shall provide a MWI to the receiving user, indicating: • the type of operation (activation); • the controlling user number; and a... |
03e7929598a1ac06c9c13610db0c068a | 101 895 | 5.2.3.2 Deactivation | If the immediate mode applies, in the case the MWI supplementary service has been deactivated by a controlling user, the MWI supplementary service shall be invoked and the network shall provide a MWI to the receiving user, indicating: • the type of operation (deactivation); • the basic service; • the controlling user n... |
03e7929598a1ac06c9c13610db0c068a | 101 895 | 5.2.4 Interrogation | Not applicable. |
03e7929598a1ac06c9c13610db0c068a | 101 895 | 5.3 Exceptional procedures | |
03e7929598a1ac06c9c13610db0c068a | 101 895 | 5.3.1 Registration and erasure | Not applicable. ETSI ETSI TR 101 895 V1.1.1 (2001-01) 13 |
03e7929598a1ac06c9c13610db0c068a | 101 895 | 5.3.2 Activation and deactivation | From the controlling user's perspective, if the network cannot comply with the request to activate or deactivate the MWI supplementary service, the network shall reject explicitly the request and indicate the reason to the receiving user and the controlling user. Reasons for rejecting the request are: • the controlling... |
03e7929598a1ac06c9c13610db0c068a | 101 895 | 5.3.3 Invocation and operation | PSTN access only: if the receiving user is engaged in a call, the immediate notification is not given to the receiving user at that time. Further attempts will be made to deliver the immediate notification, the delay between attempts being MWI service provider options. |
03e7929598a1ac06c9c13610db0c068a | 101 895 | 5.3.4 Interrogation | Not applicable. |
03e7929598a1ac06c9c13610db0c068a | 101 895 | 6 Interworking requirements | Public and private networks shall cooperate in the provision of this MWI supplementary service. This implies that the receiving user and/or the controlling user can be a user in a private network. Interworking between public and private ISDN shall include the requirements given in ETS 300 345 [3]. Interworking shall ta... |
03e7929598a1ac06c9c13610db0c068a | 101 895 | 7 Interaction with other supplementary services | |
03e7929598a1ac06c9c13610db0c068a | 101 895 | 7.1 Advice of charge services | |
03e7929598a1ac06c9c13610db0c068a | 101 895 | 7.1.1 Charging information at call set-up time | No impact, i.e. neither supplementary service shall affect the operation of the other supplementary service. |
03e7929598a1ac06c9c13610db0c068a | 101 895 | 7.1.2 Charging information during call | No impact, i.e. neither supplementary service shall affect the operation of the other supplementary service. ETSI ETSI TR 101 895 V1.1.1 (2001-01) 14 |
03e7929598a1ac06c9c13610db0c068a | 101 895 | 7.1.3 Charging information at the end of the call | No impact, i.e. neither supplementary service shall affect the operation of the other supplementary service. |
03e7929598a1ac06c9c13610db0c068a | 101 895 | 7.2 Call Waiting | For PSTN access only, the MWI can not be given since the line is busy Immediate notification must not cause a Call Waiting tone to be sent to the busy receiving user, i.e. call waiting shall not be invoked by MWI supplementary service. Further attempts will be made to deliver the notification to the receiving user, the... |
03e7929598a1ac06c9c13610db0c068a | 101 895 | 7.3 Call hold | No impact, i.e. neither supplementary service shall affect the operation of the other supplementary service. |
03e7929598a1ac06c9c13610db0c068a | 101 895 | 7.4 Call transfer | No impact, i.e. neither supplementary service shall affect the operation of the other supplementary service. |
03e7929598a1ac06c9c13610db0c068a | 101 895 | 7.5 Number Identification Services | |
03e7929598a1ac06c9c13610db0c068a | 101 895 | 7.5.1 Calling line identification presentation | No impact, i.e. neither supplementary service shall affect the operation of the other supplementary service. |
03e7929598a1ac06c9c13610db0c068a | 101 895 | 7.5.2 Calling line identification restriction | No impact, i.e. neither supplementary service shall affect the operation of the other supplementary service. |
03e7929598a1ac06c9c13610db0c068a | 101 895 | 7.5.3 Connected line identification presentation | No impact, i.e. neither supplementary service shall affect the operation of the other supplementary service. |
03e7929598a1ac06c9c13610db0c068a | 101 895 | 7.5.4 Connected line identification restriction | No impact, i.e. neither supplementary service shall affect the operation of the other supplementary service. |
03e7929598a1ac06c9c13610db0c068a | 101 895 | 7.6 Completion of Calls | |
03e7929598a1ac06c9c13610db0c068a | 101 895 | 7.6.1 Busy subscriber | For ISDN access only, no impact, i.e. neither supplementary service shall affect the operation of the other supplementary service. For PSTN access only, the MWI cannot be given since the line is busy. The MWI shall never be diverted. Further attempts will be made to deliver the MWI to the receiving user, the delay betw... |
03e7929598a1ac06c9c13610db0c068a | 101 895 | 7.6.2 Completion of calls on no reply | For ISDN access only, no impact, i.e. neither supplementary service shall affect the operation of the other supplementary service. For PSTN access only, the MWI cannot be given since the line is busy. The MWI shall never be diverted. Further attempts will be made to deliver the MWI to the receiving user, the delay betw... |
03e7929598a1ac06c9c13610db0c068a | 101 895 | 7.7 Conference | No impact, i.e. neither supplementary service shall affect the operation of the other supplementary service. |
03e7929598a1ac06c9c13610db0c068a | 101 895 | 7.8 Direct dialling in | No impact, i.e. neither supplementary service shall affect the operation of the other supplementary service. |
03e7929598a1ac06c9c13610db0c068a | 101 895 | 7.9 Call Forwarding | |
03e7929598a1ac06c9c13610db0c068a | 101 895 | 7.9.1 Call Forwarding unconditional | No impact, i.e. neither supplementary service shall affect the operation of the other supplementary service. The MWI will be forwarded as requested by the CFU supplementary service. |
03e7929598a1ac06c9c13610db0c068a | 101 895 | 7.9.2 Call Forwarding Busy | For ISDN access only, no impact, i.e. neither supplementary service shall affect the operation of the other supplementary service. For PSTN only, the immediate MWI is not given since the line is busy. Further attempts will be made to deliver the notification, the delay between attempts being MWI service provider option... |
03e7929598a1ac06c9c13610db0c068a | 101 895 | 7.9.3 Call Forwarding no reply | For ISDN access only, no impact, i.e. neither supplementary service shall affect the operation of the other supplementary service. For PSTN only, the immediate MWI is not given since the line is busy. Further attempts will be made to deliver the notification, the delay between attempts being MWI service provider option... |
03e7929598a1ac06c9c13610db0c068a | 101 895 | 7.9.4 Selective Call deflection | No impact, i.e. neither supplementary service shall affect the operation of the other supplementary service. |
03e7929598a1ac06c9c13610db0c068a | 101 895 | 7.10 Free phone | No impact, i.e. neither supplementary service shall affect the operation of the other supplementary service. |
03e7929598a1ac06c9c13610db0c068a | 101 895 | 7.11 Malicious call identification | No impact, i.e. neither supplementary service shall affect the operation of the other supplementary service. ETSI ETSI TR 101 895 V1.1.1 (2001-01) 16 |
03e7929598a1ac06c9c13610db0c068a | 101 895 | 7.12 Multiple subscriber number | If the receiving user has subscribed to the MSN supplementary service, the MWI supplementary service can be activated for each assigned number individually. In this case the MWI provided to the receiving user shall in addition contain the relevant receiving user's number. |
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