续(1)
6.1.3.1 无应答呼叫前转
PABX-LS-SSP-SCP-TS-LS-PABX(见图34)。
6.1.3.2 远端接入
见图35。
LS SSP SCP TS LS
| 8 | | | |
|------→| | | |
| A1 | | | |
|←------| | | |
| 0 | | | |
|------→| | | |
| A1 | | | |
|←------| | | |
| 0 | | | |
|------→| | | |
| A1 | | | |
|←------| | | |
| K | | | |
|------→| | | |
| A1 | | | |
|←------| | | |
| N1 | | | |
|------→| | | |
| A6 | | | |
|←------| | | |
| KA | | | |
|------→| | | |
| A1 | | | |
|←------| | | |
| P′ | | | |
|------→| | | |
| ∶ | | | |
| D′ | | | |
|------→| | | |
| A1 | | | |
|←------| | | |
| 15 | | | |
|------→| | | |
| A1 | | | |
|←------| | | |
| N2 | | | |
|------→| | | |
| A1 | | | |
|←------| | | |
| A | | | |
|------→| | | |
| ∶ | | | |
| D | | | |
|------→| | | |
| A3 | | | |
|←------| | | |
| KD | | | |
|------→| | | |
| KB | | | |
|←------| | | |
| | IDP | | |
| |------------→| | |
| | ∶ | | |
| | CON | | |
| |←------------| | |
| | P | |
| |----------------→| |
| | A1 | |
| |←----------------| |
| | 0 | |
| |----------------→| |
| | A1 | |
| |←----------------| |
| | ∶ | |
| | D | |
| |----------------→| |
| | A1 | |
| |←----------------| P |
| | |---------→|
| | | A1 |
| | |←---------|
| | | 0 |
| | |---------→|
| | | A1 |
| | |←---------|
| | | ∶ |
| | | D |
| | |---------→|
| | A3 | A3 |
| |←----------------|←---------|
| | KD | KD |
| |----------------→|---------→|
| | KB | KB |
| |←----------------|←---------|
| | 应答 | 应答 |
| |←----------------|←---------|
| 应答 | ACR | |
|←------|--------------------→| | |
| 拆线 | 拆线 | 拆线 |
|------→|----------------→|---------→|
| 释放监护 | 释放监护 | 释放监护 |
|←------|←----------------|←---------|
| | | |
图28 固定用户呼叫800业务用户(SSP设在长途局)