Comp 346/488: Intro to Telecommunications

Tuesdays and Thursdays, 6:00-9:15, Lewis Towers 410

Class 6
AICN readings:
    An Overview of Networks
   
Suppose    
Optional reading (Stallings 7th -- 9th editions)
Chapters 3, 4 and 5


Homework 1 is now on Sakai. It is due tomorrow.

The Midterm is moved to next Thursday, July 23.

There is now a study guide on Sakai.


I tried to set up Asterisk "passthrough" mode to use g729 voice encoding, which is supported by both my Cisco phone and by Flowroute. It did not work, at least for inbound calls.


Notes:

Homework questions

Asterisk sip.conf/extensions.conf demo from asterisk_config.html

Telecom terminology: pots.html

Asterisk: configuring a phone
    Ekiga demo with headset
        call url: sip:2001@ulam.cs.luc.edu

    PBX Terminology: asterisk_basics.html

Multiplexing:
    TDM: T-carrier and SONET
        Bit-stuffing

Call Setup and Switching
    Trunk Routing
    Clos switches