Telos ZephyrExpress user manual Really Important Isdn TIP

they may have given you a 2 B-channel AT&T ÒCustom Point to MultipointÓ line with 2 phone numbers and 2 SPIDS. ZephyrExpress does not support this con- figuration.

If you have Custom Point to Multipoint, you can often get things working temporarily by following these steps:

1.Remove both SPIDS and both directory numbers

2.Set Switch Type to PTP

3.Have the distant codec call either of your phone numbers twice: that is, they should dial one of your ISDN numbers, drop the line, and then dial it again. They should be

able to connect.

i 4. The line will probably now function normally for outgoing calls until ZephyrExpress is rebooted or the ISDN connection is reinitialized.ISDN TIP!If your Telco did not properly follow the ordering information you sent them

from the appendix of this manual, they may have given you a 2 B-channel Na- tional ISDN-1 line with only one SPID and one phone number.

If you have only one SPID and one phone number on a Natl I-1 line, you can often get things working by following these steps:

i A REALLY IMPORTANT ISDN TIP!

1. Enter the SPID they gave you as SPID#1

2. Enter your 7-digit directory number twice as both Directory 1 and Directory 2

Carefully verify that you have the correct SPID from the Telco, and that you have properly entered it into the Zephyr.

SPIDs must exactly, perfectly correct for ISDN to work! WeÕve seen a few cases where numbers were transposed by Telco personnel, so it might be a good idea to re-check with them if things are pointing in this direction.

For a list of known working SPIDS by Telephone Company, see the Appendix.

TROUBLESHOOTING 9-15