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
New Sale! 
View larger
View larger ITU-T H.450.4
New product
ITU-T H.450.4
Call hold supplementary service for ITU-T H.323 systemsMore info
| Author | ITU |
|---|---|
| Editor | ITU |
| Document type | Standard |
| Format | File |
| ICS | 33.160.60 : Multimedia systems and teleconferencing equipment |
| Replace | ITU-T H.450.4 (1999-05) |
| Year | 2013 |
| Document history | ITU-T H.450.4 (2013-03) |
| Country | International |
| Keyword | CCITT H.450;CCITT H.450.4;ITU-T H.450;ITU-T 450;450;ITU-T H.450.4 |