Table of Contents

 1     Scope            
 2     References   
 3     Definitions   
 4     Abbreviations and acronyms  
 5     Conventions
 6     Framework  
        6.1     Layer 1              
        6.2     Layer 2              
        6.3     Implementation               
        6.4     Operator information      
 7     Designations of public switched circuit interconnections   
        7.1     General              
        7.2     Telephone-type circuits  
        7.3     Circuit used for switched telex and telegraph services              
        7.4     Interconnecting circuits in the public switched data network  
        7.5     Related information        
 8     Related information for public switched circuit interconnections    
        8.1     Urgency for restoration [item 1]    
        8.2     Terminal countries [item 2]            
        8.3     Names of network operators/service providers [item 3]           
        8.4     Control station (sub-control station(s)) [item 4]         
        8.5     Fault report points [item 5]            
        8.6     Routing [item 6]               
        8.7     Association [item 7]        
        8.8     Equipment information [item 8]   
        8.9     Use [item 9]       
       8.10     Transmission medium information [item 10]           
       8.11     Composition of the transmission [item 11]               
       8.12     Bandwidth or bit rate [item 12]   
       8.13     Signalling type [item 13]               
 9     Designations of fixed (non-switched) circuit interconnections between operators        
        9.1     General              
        9.2     Leased circuit interconnections     
        9.3     Fixed (non-switched) public circuits             
        9.4     Related information        
10     Related information for fixed circuit interconnections     
       10.1     Urgency for restoration [item 1]  
       10.2     Terminal countries [item 2]          
       10.3     Names of network operators/service providers [item 3]         
       10.4     Control station (sub-control station(s)) [item 4]       
       10.5     Fault report points [item 5]           
       10.6     Routing [item 6]              
       10.7     Association [item 7]       
       10.8     Equipment information [item 8] 
       10.9     Use [item 9]     
      10.10     Transmission medium information [item 10]          
      10.11     Composition of the transmission [item 11]              
      10.12     Bandwidth or bit rate [item 12]  
      10.13     Signalling type [item 13]              
      10.14     Applicable ITU-T Recommendations [item 14]     
11     Designations of group, supergroup, etc. (bidirectional and unidirectional) interconnections     
       11.1     General             
       11.2     Bidirectional groups, etc.               
       11.3     Unidirectional groups and supergroups      
       11.4     Related information      
12     Designations of group link, supergroup link and line link interconnections   
       12.1     Group and supergroup links         
       12.2     Line links          
       12.3     Related information      
13     Related information for group, group link and line link interconnections     
       13.1     Urgency for restoration [item 1]  
       13.2     Terminal countries [item 2]          
       13.3     Names of network operators/service providers [item 3]         
       13.4     Control station sub-control station(s) [item 4]          
       13.5     Fault report points [item 5]           
       13.6     Routing [item 6]              
       13.7     Association [item 7]       
       13.8     Equipment information [item 8] 
       13.9     Use [item 9]     
      13.10     Transmission medium information [item 10]          
      13.11     End-to-end information or operational agreement [item 11]               
      13.12     Bandwidth [item 12]    
      13.13     Occupancy (for groups/supergroups, etc., and for line links) [item 13]              
14     Designations of digital block (bidirectional and unidirectional) interconnections        
       14.1     General             
      Page
       14.2     Bidirectional digital blocks           
       14.3     Restoration digital blocks             
       14.4     Multiple destination unidirectional digital blocks     
       14.5     Single destination unidirectional digital blocks         
       14.6     Related information      
15     Designation of digital path interconnections       
       15.1     Conventional digital paths not connected to their terminal equipment               
       15.2     Restoration digital paths               
       15.3     Digital line sections and digital radio sections           
       15.4     Related information      
16     Designations of routes in the mixed analogue/digital transmission network 
       16.1     Transmission routes with one analogue-to-digital conversion               
       16.2     Transmission routes with two analogue-to-digital conversions             
       16.3     Transmission routes with more than two analogue-to-digital conversions          
       16.4     Related information      
17     Designation of data transmission systems           
       17.1     General             
       17.2     Data transmission links 
       17.3     Related information      
18     Designations of digital block interconnections created by the interconnection of digital circuit multiplication equipments (DCMEs)    
       18.1     General             
       18.2     Multi-clique configuration of DCMEs        
       18.3     Low-rate encoding equipment     
       18.4     Related information      
19     Synchronous digital hierarchy (SDH)   
       19.1     Designation of multiplex sections of the synchronous digital hierarchy (SDH) 
       19.2     Designations of virtual container interconnections  
       19.3     Concatenated virtual containers 
       19.4     Leased circuits based on SDH     
20     Related information for digital block, path, data transmission system, block interconnections created by the interconnection of DCMEs, SDH multiplex sections and virtual containers    
       20.1     Urgency for restoration [item 1]  
       20.2     Terminal countries [item 2]          
       20.3     Names of network operators/service providers [item 3]         
       20.4     Control station [sub-control station(s)] [item 4]       
       20.5     Fault report points [item 5]           
       20.6     Routing [item 6]              
       20.7     Association [item 7]       
       20.8     Equipment information [item 8] 
       20.9     Use [item 9]     
      20.10     Transmission medium information [item 10]          
      20.11     End-to-end information or composition of transmission or operational agreement [item 11]    
      20.12     Bit rate (for blocks, paths and SDH multiplex sections) [item 12]      
      20.13     Occupancy (except for paths) [item 13]   
      20.14     Actual number of channels and access point identifier [item 14]       
      20.15     Clocking information (for blocks only) [item 15]   
      20.16     Direction of transmission (for unidirectional blocks) [item 16]            
21     Designation of connections for the asynchronous transfer mode (ATM)     
       21.1     General             
       21.2     Transport links
       21.3     Virtual path     
       21.4     Virtual channels (VCAs)               
       21.5     ATM Layer 2  
22     Related information for the asynchronous transfer mode (ATM)  
       22.1     Urgency for restoration [item 1]  
       22.2     Terminal countries [item 2]          
       22.3     Names of network operators/service providers [item 3]         
       22.4     Control and sub-control station(s) [item 4]               
       22.5     Fault report points [item 5]           
       22.6     Routing [item 6]              
       22.7     Association [item 7]       
       22.8     Equipment information [item 8] 
       22.9     Use [item 9]     
      22.10     Transmission medium information [item 10]          
      22.11     Operational agreement [item 11]               
      22.12     Unassigned item [item 12]           
      22.13     Occupancy [item 13]    
      22.14     Direction of transmission (for unidirectional transit network services only) [item 14]     
      22.15     ATM transfer capability [item 15]             
      22.16     Source traffic descriptor [item 16]             
      22.17     Cell delay variation tolerance [item 17]   
      22.18     Quality of service [item 18]         
23     Transit network services          
       23.1     General             
       23.2     Transit digital transmission service             
      Page
       23.3     Transit dark fibre service              
       23.4     Related information      
24     Related information on transit network service  
       24.1     Urgency for restoration [item 1]  
       24.2     Terminal countries [item 2]          
       24.3     Names of network operators/service providers [item 3]         
       24.4     Control station [sub-control station(s)] [item 4]       
       24.5     Fault report points [item 5]           
       24.6     Routing [item 6]              
       24.7     Association [item 7]       
       24.8     Equipment information [item 8] 
       24.9     Use [item 9]     
      24.10     Transmission medium information [item 10]          
      24.11     SLA [item 11]
      24.12     Bit rate [item 12]           
      24.13     Commercial identifier [item 13] 
      24.14     Unassigned item [item 14]           
      24.15     Clocking information [item 15]  
      24.16     Direction of transmission (for unidirectional transit network services only) [item 16]     
25     Designations for wavelength division multiplexing (simple and dense)         
       25.1     General             
       25.2     The equipment
       25.3     Configurations for the newly created transmission systems  
       25.4     General format for the optical transmission systems              
       25.5     Related information      
26     Related information on DWDM            
27     Designation of connections for the digital subscriber line (DSL)     
       27.1     General             
       27.2     Related information for the ADSL connections       
       27.3     Related information for the SDSL connection         
       27.4     Examples         
28     Exceptional designations        
       28.1     Exceptional designations with intelligence in the serial number            
Annex A – Full examples for designation information    
        A.1     Full example for the designation information of a public switched telephone circuit       
        A.2     Full example for the designation information of a leased analogue circuit         
        A.3     Full examples for the designation information of a group and a group link interconnection    
        A.4     Full examples for the designation information of a digital block, digital path, data transmission system, blocks created between DCMEs, virtual containers and SDH multiplex section interconnections    
Annex B – KLM addressing and its relationship to time slot numbering for virtual containers    
        B.1     KLM addressing relationship to time slot numbering              
        B.2     KLM addressing of VC-4 occupancy         
        B.3     Comparative notation of KLM addressing vs. time slot numbering     
Annex C – Reference clause numbers for the various types of routes    
Annex D – Numbering of channels in data transmission systems    
Annex E – Notification form for List of ITU Carrier Codes    
Annex F – List of all ITU function codes    
Bibliography