Cart
0
Product
Products
(empty)
No products
To be determined
Shipping
$0.00
Total
Product successfully added to your shopping cart
Quantity
Total
There are 0 items in your cart.
There is 1 item in your cart.
Total products
Total shipping
To be determined
Total
Reduced price!
View larger
View larger
ITU-T Q Supplement 4
New product
ITU-T Q Supplement 4
Number portability - Capability set 1 requirements for service provider portability (All call query and Onward routing)More info
This Supplement describes the additions required to support Service Provider Portability in a Signalling System Number No. 7 network for Number Portability Capability Set 1 (NPCS-1). The Portability Number Call Control for Service Provider Portability (PNCC-SPP) in a Signalling System Number No. 7 network provides the core function to support portability for geographic numbers using the onward routing and all call query methods.
| Author | ITU |
|---|---|
| Editor | ITU |
| Document type | Standard |
| Format | File |
| ICS | 33.040.30 : Switching and signalling systems
35.110 : Networking |
| Number of pages | 27 |
| Year | 1990 |
| Document history | |
| Country | International |
| Keyword | CCITT Q;CCITT Q Supplement 4;ITU-T Q;ITU-T 4;4;ITU-T Series Q Supplement 4;ITU-T Q Supplement 4 |