Telos ZephyrExpress user manual Ordering Isdn, Company Telephone Number Worldwide WEB

From the perspective of the telephone network, each channel appears to be a separate line with its own number and independent dial-out capabilities. Since each has to be di- aled or answered separately, they appear to be “lines” to users also. We refer to a B chan- nel as a “line” on ZephyrExpress menus.

ZephyrExpress’ internal interface (sometimes called by its generic name “Terminal Adapter”) is used to connect to digital ISDN telephone lines. It easily adapts to the various types of service offered by the range of Central Office (CO) switches installed by tele- phone companies in the USA and Canada.

Ordering ISDN

Dealing with the Phone Company

As is often the case when broadcasters interface with phone people, the lines of com- munication on ISDN can get a little tangled.

The first order of business is to find someone who knows what ISDN is. While your usual account agent will be the normal entry point, you will probably be talking to a number of phone people before you find one who understands your needs.

Some of the regional Bell companies offer a single point of contact number for switched digital services. Note that in many cases the phone company will need to do a “loop qualification” (line loss test) from your site before they can verify that ISDN will be avail- able. Some telephone companies use “resellers”. If this is the case you should inquire what experience this reseller has with installing ISDN for audio codecs.

Here are some contact numbers we use – if you have particularly positive or negative ex- periences with these offices, please let us know.

COMPANY	TELEPHONE NUMBER	WORLDWIDE WEB
Ameritech	800-TEAMDATA (800-832-6328)	http://www.ameritech.com
Bell Atlantic	Business 800-570-ISDN (800-570-4736)	http://www.ba.com
	Residential 800-204-7332
Bell Atlantic areas that were formerly Nynex, call your account rep or:
	800-GET-ISDN (800-428-4736)	http://www.bell-atl.com
Bell South	800-428-ISDN (800-428-4736)	http://www.bell.bellsouth.com
Cincinnati Bell	513-566-DATA (513-566-3282)
GTE	800-GTE-4WCN (800-483-4926)	http://www.gte.com
Natco	800-775-6682 ext 288
Nevada Bell	Small Business 702-333-4811;
	large business 702-688-7100

Nynex (see Bell Atlantic)

APPENDIX 11-11