| ??? 06/26/03 05:45 Read: times |
#49389 - RE: 8051 Telephone Exchange Responding to: ???'s previous message |
Usman Pervaiz wrote:
------------------------------- Thankyou for your time and reply. Michael, firstly please consider the 100 lines intercom system as just an example... At this moment i only want to design an 8 Lines Telephone Exchange, so please guide me how i can use 8051 timers or intreputs to program 8051 so that my 8 lines simple exchange is complete... Please guide me according to this...how to start writing the steps which can help me in my coding. Usman. hello all iwant to detect pulse dial and convert them to tone . i use mt8888 for tone generater and opto&4093 for detect pulse .please say to me is there other way to detect pulse(off hook). best regard edvard |
| Topic | Author | Date |
| 8051 Telephone Exchange | 01/01/70 00:00 | |
| RE: 8051 Telephone Exchange | 01/01/70 00:00 | |
| RE: 8051 Telephone Exchange | 01/01/70 00:00 | |
| RE: 8051 Telephone Exchange | 01/01/70 00:00 | |
| RE: 8051 Telephone Exchange | 01/01/70 00:00 | |
| RE: 8051 Telephone Exchange | 01/01/70 00:00 | |
| RE: AUTOMATED TELEPHONE SERVICE | 01/01/70 00:00 | |
| for IJAZ AHMED | 01/01/70 00:00 | |
| RE: for IJAZ AHMED | 01/01/70 00:00 | |
| Thankyou, IJAZ for willing to help me | 01/01/70 00:00 | |
| Building Telephone exchanges | 01/01/70 00:00 | |
| RE: Building Telephone exchanges | 01/01/70 00:00 | |
| Ijaz did you get your document | 01/01/70 00:00 | |
| RE: Ijaz did you get your document | 01/01/70 00:00 | |
RE: 8051 Telephone Exchange | 01/01/70 00:00 |