Vertical TeleVantage 7.5 Technical Information download pdf (Page 63)

CHAPTER 4. TRUNK OPTIONS AND REQUIREMENTS 4-7

U.S. local and long-distance service

Two kinds of T1 trunks are available from phone companies in the United States, local and

long-distance.

Local T1 trunks

Local T1 trunks operate similarly to local analog lines, in that local calls are free, and you can

place long-distance calls using the long-distance carrier of your choice.

Important:

It is recommended that you not use local T1 lines because they do not supply ANI

Caller ID information used by TeleVantage to recognize contacts when they call. Most incoming

calls from contacts on local T1 trunks will display as “Unknown” in the Call Log and in the

ViewPoint Call Monitor and Voice Messages views. Also, call rules for external contacts will not

work.

Local T1 trunks support DID, and you can order blocks of DID numbers for each T1 line.

Long-distance T1 trunks

Long-distance T1 trunks handle local and long-distance calls through the same carrier, so that

all outbound calls are charged at the rate charged by your long-distance carrier.

Long-distance T1 trunks do not support outbound toll-free calls, for example, to 411 or 800 and

888 numbers, and require that you dial the area code for all numbers, even those in your local

area.

Long-distance T1 trunks provide ANI, which enables full TeleVantage functionality. DID is

supported on incoming calls only if the line is used for toll-free calling, for example, 800 or 888

numbers.

Because of the higher cost and limitations on outbound calls, long-distance T1 lines are

recommended for inbound-only trunks, for example, in call centers.

E1 trunk requirements ____________________________________

TeleVantage supports both kinds of E1 service:

Q ISDN

Q CAS. (CAS signaling is not supported on Dialogic DM3 ISDN boards. For more

information about specific boards, see the Notes to the “Basic board information” table

in Appendix E in Installing Dialogic Telephony Components.

Note:

The Dialogic drivers do not support E1 and T1 trunks on the same TeleVantage Server.

E1 carrier requirements

TeleVantage currently supports the following ISDN PRI protocols over E1 lines. The drivers for

these protocols are automatically installed with Dialogic SR 6.0 if you select the required

features as described in “Installing Dialogic SR 6.0” in Chapter 7 in Installing Dialogic

Telephony Components. Contact your TeleVantage provider if your protocol is not listed here.

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Vertical TeleVantage 7.5 Technical Information Page 63