Sidnr Page No. (14) Telia Network Services specification




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Sidnr - Page No.

(14)
Telia Network Services SPECIFICATION

Uppgjord (även faktaansv. om annan) - Prepared (also subject resp. if other)

Nr - No.

NwS, Anders Delang

LZBA 506 403/8

Dokumentansvarig/Godkänd - Document responsible/Approved

Datum - Date

Rev

Tillhör - File

S-klass

NwS, Kerstin Erlandsson

2001-08-20

B




O

Benämning Title
8. ISDN SUPPLEMENTARY SERVICES

INTERWORKING WITH PSTN FOR

THE AM PART OF ISDN LOCAL 7 (SE 67)




CONTENTS
8.1 Introduction 3
8.2 Interworking ISDN - PSTN

8.2.1 Advice of Charge at call set-up time (AOC-S) 3

8.2.2 Advice of Charge during the call (AOC-D) 3

8.2.3 Advice of Charge at the end of the call (AOC-E) 3

8.2.4 Call Answering Conditional 3

8.2.5 Call Answering Unconditional 4

8.2.6 Call Deflection (CD) 4

8.2.7 Call Diversion Protection 4

8.2.8 Call Forwarding Busy (CFB) 4

8.2.9 Call Forwarding Busy, Fixed 5

8.2.10 Call Forwarding No Reply (CFNR) 5

8.2.11 Call Forwarding No Reply, Fixed 5

8.2.12 Call Forwarding to Fixed Announcements 5

8.2.13 Call Forwarding to Fixed Announcements, Fixed 5

8.2.14 Call Forwarding Unconditional (CFU) 5

8.2.15 Call Forwarding Unconditional, Fixed 5

8.2.16 Call Hold (HOLD) 5

8.2.17 Call Waiting (CW) 6

8.2.18 Calling Line Identification Presentation (CLIP) 6

8.2.19 Calling Line Identification Restriction (CLIR) 7

8.2.20 Calling Name Identification Presentation 7

8.2.21 Calling Name Identification Restriction 7

8.2.22 Change of Keyword 8

8.2.23 Closed User Group (CUG) 8

8.2.24 Completion of Calls to Busy Subscriber (CCBS) 8

8.2.25 Conference Call, Add-on (CONF) 8

8.2.26 Connected Line Identification Presentation (COLP) 9

8.2.27 Connected Line Identification Restriction (COLR) 9

8.2.28 Direct Dialling In (DDI) 9

8.2.29 Equal Access 10

8.2.30 Explicit Call Transfer (ECT) 10

8.2.31 Fixed Destination Call 10

8.2.32 Incoming Call Barring, Fixed 11

8.2.33 Incoming Call Barring, User Controlled 11

8.2.34 Line Hunting (LH) 11

8.2.35 Malicious Call Identification (MCID) 11

8.2.36 Meet-Me Conference (MMC) 11

8.2.37 Message Waiting Indication (MWI) 11

8.2.38 Multiple Subscriber Number (MSN) 11

8.2.39 Outgoing Call Barring, Fixed (OCB-F) 12

8.2.40 Outgoing Call Barring, User Controlled (OCB-UC) 12

8.2.41 Priority 12

8.2.42 Subaddressing (SUB) 12

8.2.43 Terminal Portability (TP) 12

8.2.44 Three Party (3PTY) 13

8.2.45 Trunk Hunting (TH) 13

8.2.46 User-to-User Signalling, services 1, 2 and 3 (UUS) 13

APPENDIX A: REVISION HISTORY 14



8.1 Introduction

This document describes ISDN supplementary services interworking with PSTN in the Telia network for the AM part of ISDN Local 7.


Interworking with other networks nationally or internationally is not specified. Generally, interworking with other networks is regulated by bilateral agreements.
Note: The commercial offer of ISDN supplementary services may differ from what is technically implemented.

8.2 Interworking ISDN - PSTN
Below is described how the ISDN supplementary services are inter-working with the corresponding PSTN services in Telia’s network.
8.2.1 Advice of Charge at call set-up time (AOC-S)
Calls from ISDN to PSTN
The AOC-S supplementary service will give the served user the charging information for a call set up to a user in PSTN.
Calls from PSTN to ISDN
There is no interaction, since the service does not exist in PSTN.
8.2.2 Advice of Charge during the call (AOC-D)
Same as for Advice of Charge at call set-up time (AOC-S).

8.2.3 Advice of Charge at the end of the call (AOC-E)
Same as for Advice of Charge at call set-up time (AOC-S).

8.2.4 Call Answering Conditional

Calls from PSTN and calls from ISDN will be diverted to a call answering center. The call answering center may be a separate center for PSTN and a separate center for ISDN, or both networks may use the same call answering center.


8.2.5 Call Answering Unconditional
Calls from PSTN and calls from ISDN will be diverted to a call answering center. The call answering center may be a separate center for PSTN and a separate center for ISDN, or both networks may use the same call answering center.
8.2.6 Call Deflection (CD)
Calls from ISDN to PSTN
An ISDN call may be deflected/diverted to a number in PSTN. Concerning the number of times a call may be diverted, see call Forwarding Busy (CFB) below.

Calls from PSTN to ISDN
The service does not exist in PSTN.
However, a call coming from PSTN may be deflected/diverted by a user in ISDN. Concerning the number of times a call may be diverted, see call Forwarding Busy (CFB) below.
8.2.7 Call Diversion Protection
Calls from ISDN to PSTN
A call that has been diverted from ISDN to PSTN will not be offered to a served user in PSTN having the Call Diversion Protection supplementary service activated.
Calls from PSTN to ISDN
A call that has been diverted from PSTN to ISDN will not be offered to a served user in ISDN having the Call Diversion Protection supplementary service activated.
8.2.8 Call Forwarding Busy (CFB)
It is possible to forward a call from ISDN to PSTN, and also from PSTN to ISDN.
The maximum number of times a call can be diverted (counting forwardings within ISDN, within PSTN and betwen the two networks) is 5 times.
When counting the number of forwardings/diversions, all types of diversions are included (CD, CFB, CFB Fixed, CFNR, CFNR Fixed, Call Forwarding to Fixed Announce-ments, Call Forwarding to Fixed Announcements Fixed, CFU and CFU Fixed).
8.2.9 Call Forwarding Busy, Fixed
Same as for Call Forwarding Busy (CFB).
8.2.10 Call Forwarding No Reply (CFNR)
Same as for Call Forwarding Busy (CFB).
8.2.11 Call Forwarding No Reply, Fixed
Same as for Call Forwarding Busy (CFB).
8.2.12 Call Forwarding to Fixed Announcements
Normally, an ISDN user will use an ISDN call center for her/his forwarded calls, and a PSTN user will use a PSTN call center. However, there are no technical restrictions to let an ISDN call be directed to a PSTN call center or vice versa.
Concerning forwarding to an announcement machine, ISDN and PSTN may use the same announcement machine equipment, but separate messages may be defined.
8.2.13 Call Forwarding to Fixed Announcements, Fixed
Same as for Call Forwarding to Fixed Announcements.
8.2.14 Call Forwarding Unconditional (CFU)
Same as for Call Forwarding Busy (CFB).
8.2.15 Call Forwarding Unconditional, Fixed
Same as for Call Forwarding Busy (CFB).
8.2.16 Call Hold (HOLD)
A call from ISDN to PSTN, or from PSTN to ISDN, can be held by either user irrespective who is the calling user. The time the call can be held depends on whether the holding user belongs to ISDN or PSTN. In ISDN, there is no limit how long a call can be held. In PSTN a call can be held for 90 seconds.
If the ISDN user holds the call, no notification of call hold will be sent to the PSTN user.
8.2.17 Call Waiting (CW)
Calls from ISDN to PSTN
A call from ISDN to PSTN will invoke Call Waiting at the PSTN user’s side if Call Waiting is activated for that user.
Calls from PSTN to ISDN
A call from PSTN to ISDN will invoke Call Waiting at the ISDN user’s side if Call Waiting is activated for that user.
No notifications will be sent from the called ISDN user to the calling PSTN user. This means that when the timer for accepting the call in ISDN has expired, the calling PSTN user will encounter ”silence” in his terminal, just like after having terminated a basic call.
8.2.18 Calling Line Identification Presentation (CLIP)
Calls from ISDN to PSTN
The calling line identity of the ISDN user will be sent to PSTN. In case the call has been diverted and the last diversion occurred in ISDN, the identity of the last diverting ISDN user will be used as the calling line identity.
If the call has been originated by another national or international operator’s ISDN, and if a bilateral agreement exists for presentation of the calling line identity, the calling line identity of the ISDN user will be sent to PSTN.
If restrictions apply for presenting the identity of the calling user and/or the diverting user, no identity will be presented to the PSTN user.
Calls from PSTN to ISDN
The calling line identity of the PSTN user will be sent to ISDN. In case the call has been forwarded one or more times in PSTN, the identity of the forwarding user(s) will also be sent to ISDN and will be used as forwarding identity/identities.
If restrictions apply for presenting the identity of the calling user and/or the diverting user, no identity will be presented to the ISDN user.
8.2.19 Calling Line Identification Restriction (CLIR)
Calls from ISDN to PSTN
The calling line identity of the ISDN user will not be presented to the PSTN user unless the PSTN user has an override category.
Calls from PSTN to ISDN
The calling line identity of the PSTN user will not be presented to the ISDN user unless the ISDN user has an override category.


8.2.20 Calling Name Identification Presentation



Calls from ISDN to PSTN
There is no interaction. The calling name is fetched by the terminating PSTN exchange, which uses the calling line identity to make a database query.
Calls from PSTN to ISDN



There is no interaction. The calling name is fetched by the terminating ISDN exchange, which uses the calling line identity to make a database query.
8.2.21 Calling Name Identification Restriction
Calls from ISDN to PSTN
There is no interaction. The calling name is fetched by the terminating PSTN exchange, which uses the calling line identity to make a database query. Any information concerning restrictions to present the calling name will be registered in the database and will be taken into account by the terminating PSTN exchange.
Calls from PSTN to ISDN
There is no interaction. The calling name is fetched by the terminating ISDN exchange, which uses the calling line identity to make a database query. Any information concerning restrictions to present the calling name will be registered in the database and will be taken into account by the terminating ISDN exchange.
8.2.22 Change of Keyword
Calls from ISDN to PSTN
When the served user changes her/his keyword (password), this is done locally in the ISDN exchange with no call being set up. Therefore there is no interaction with PSTN.
Calls from PSTN to ISDN
This supplementary service does not exist in PSTN.
8.2.23 Closed User Group (CUG)
Calls from ISDN to PSTN
A PSTN user cannot be a member of an ISDN Closed User Group, so it is not possible for an ISDN user to make an ISDN CUG call to a PSTN user. However, if the served ISDN user has outgoing access from the Closed User Group, the served user may originate calls to PSTN. Such calls will be marked as normal calls and not as CUG calls.
(For the PSTN CUG service used by a served PSTN user, ISDN numbers may entered on the screening list telling which users are allowed to call the served PSTN user.)
Calls from PSTN to ISDN
If the served ISDN user has incoming access to the Closed User Group, the served user may receive calls from PSTN.
8.2.24 Completion of Calls to Busy Subscriber (CCBS)
It is possible for an ISDN user to activate CCBS towards a PSTN user and vice versa.
8.2.25 Conference Call, Add-on (CONF)
Calls from ISDN to PSTN
The served ISDN user may include PSTN user(s) in the conference call. However, no outband notifications will be sent to the PSTN user(s).
Calls from PSTN to ISDN
There is no interaction, since the service does not exist in PSTN.
8.2.26 Connected Line Identification Presentation (COLP)
Calls from ISDN to PSTN
For PSTN subscribers with digital connection (CJ) and PSTN subscribers connected to AXE-M (EVCJ), the connected line identity of the PSTN user will be sent to ISDN and will be presented to the ISDN user unless connected line identification restrictions apply.
For PSTN subscribers with analogue connection (BJ), no connected line identity will be sent from PSTN to ISDN.
Calls from PSTN to ISDN
There is no interaction, since the service does not exist in PSTN.
8.2.27 Connected Line Identification Restriction (COLR)
Calls from ISDN to PSTN
The connected line identity of the PSTN user will not be presented to the ISDN user.
Calls from PSTN to ISDN
Since the Connected Line Identification Presentation (COLP) service does not exist in PSTN, there is no case when a connected line identity would be presented to a PSTN user. In other words, restricted and non-restricted connected ISDN numbers will never be presented to a PSTN user.
8.2.28 Direct Dialling In (DDI)
Calls from ISDN to PSTN
An ISDN user may make a call to a DDI number in PSTN.
Calls from PSTN to ISDN
A PSTN user may make a call to a DDI number in ISDN.
8.2.29 Equal Access
Calls from ISDN to PSTN
When the served user changes the pre-subscribed international or national network operator identity, this is done locally in the ISDN exchange with no call being set up. Therefore there is no interaction with PSTN.
Calls from PSTN to ISDN
When the served user changes the pre-subscribed international or national network operator identity, this is done locally in the PSTN exchange with no call being set up. Therefore there is no interaction with ISDN.
8.2.30 Explicit Call Transfer (ECT)
If at least one of the users belong to ISDN and at least one of the other users belong to PSTN, Explicit Call Transfer may be invoked by a user in either network.
Calls from ISDN to PSTN
If an ISDN user invokes the service, it is not possible to notify the PSTN user(s) that call transfer has occurred. Also, the address of the remote ISDN user (if any) will not be given to the PSTN user.
The remote ISDN user (if any) will be notified about the transfer but will not get the number of the remote PSTN user.
Calls from PSTN to ISDN
If a PSTN user invokes the service, no notification will be sent from PSTN to ISDN that call transfer has occurred.
8.2.31 Fixed Destination Call
Calls from ISDN to PSTN
An ISDN user may make a call to a fixed destination in PSTN.
Calls from PSTN to ISDN
A PSTN user may make a call to a fixed destination in ISDN.
8.2.32 Incoming Call Barring, Fixed
When Incoming Call Barring, Fixed, is activated incoming calls will be barred according to the selected barring program, regardless whether the calling user is in ISDN or PSTN.
8.2.33 Incoming Call Barring, User Controlled
Same as for Incoming Call Barring, Fixed.
8.2.34 Line Hunting (LH)
Calls from ISDN to PSTN
An ISDN user may make a call to a group number in PSTN that uses Line Hunting.
Calls from PSTN to ISDN
A PSTN user may make a call to a group number in ISDN that uses Line Hunting.
8.2.35 Malicious Call Identification (MCID)
On calls from ISDN to PSTN, or from PSTN to ISDN, the identity of the calling and called users is registered.
8.2.36 Meet-Me Conference (MMC)
ISDN users and PSTN users may take part in the same Meet-Me Conference.
8.2.37 Message Waiting Indication (MWI)
Not applicable; i.e. it is not possible for a receiving ISDN user to get message waiting indications from PSTN, or for a receiving PSTN user to get message waiting indications from ISDN.
8.2.38 Multiple Subscriber Number (MSN)
The service does not exist in PSTN, but the following applies:
Calls from ISDN to PSTN
An ISDN user may use her/his MSN number as calling line identity on a call to PSTN.
Calls from PSTN to ISDN
A PSTN user may make a call to a MSN number in ISDN.
8.2.39 Outgoing Call Barring, Fixed (OCB-F)
Calls from ISDN to PSTN
When Outgoing Call Barring, Fixed, is activated outgoing ISDN calls to PSTN will be barred according to the selected barring program.
Calls from PSTN to ISDN
When Outgoing Call Barring, Fixed, is activated outgoing PSTN calls to ISDN will be barred according to the selected barring program.
8.2.40 Outgoing Call Barring, User Controlled (OCB-UC)
Same as for Outgoing Call Barring, Fixed.
8.2.41 Priority
Calls from ISDN to PSTN
The priority indicator will be transferred from ISDN to PSTN.
Calls from PSTN to ISDN
The priority indicator will be transferred from PSTN to ISDN.
8.2.42 Subaddressing (SUB)

The service does not exist in PSTN; i.e. a subaddress sent from ISDN to PSTN will not be forwarded in PSTN. No indication will be sent to the calling ISDN user that the subaddress has been discarded.


8.2.43 Terminal Portability (TP)
The service does not exist in PSTN. However, an ISDN user may use Terminal Portability on an existing call from ISDN to PSTN, or from PSTN to ISDN. In this case, no notifications are sent to the PSTN user.
8.2.44 Three Party (3PTY)
Calls from ISDN to PSTN
The served ISDN user may include PSTN user(s) in the three party call. However, no outband notifications will be sent to the PSTN user(s).
Calls from PSTN to ISDN
The served PSTN user may include ISDN user(s) in the three party call.
8.2.45 Trunk Hunting (TH)
Calls from ISDN to PSTN
An ISDN user may make a call to a group number in PSTN that uses Trunk Hunting.
Calls from PSTN to ISDN
A PSTN user may make a call to a group number in ISDN that uses Trunk Hunting.
8.2.46 User-to-User Signalling, services 1, 2 and 3 (UUS)
The service does not exist in PSTN, so there is no interaction. An ISDN user calling a user in PSTN will receive an indication that the user-to-user information cannot be delivered.

APPENDIX A: REVISION HISTORY


Rev. A 1999-06-01 New version.


Rev. B 2001-08-20 Updating of section 8.2.18 (CLIP).




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