
Microsoft Lync Server 2013 48 Document #: LTRT-40127
Enhanced Gateway with Analog Devices
4. Basic trunk configuration:
a. From the ‘Protocol Type’ drop-down list, select the required trunk protocol.
Notes:
• If the ‘Protocol Type’ field displays 'NONE' (i.e., no protocol type selected)
and no other trunks have been configured, after selecting a PRI protocol
type, you must reset the Enhanced gateway.
• All PRI trunks of the Enhanced gateway must be of the same line type - E1
or T1. However, different variants of the same line type can be configured on
different trunks, for example, E1 Euro ISDN and E1 CAS (subject to the
constraints in the Release Notes).
• BRI trunks can operate with E1 or T1 trunks.
• If the trunk can’t be stopped because it provides the clock (assuming the
Enhanced gateway is synchronized with the E1/T1 clock), assign a different
E1/T1 trunk to provide the clock or enable ‘TDM Bus PSTN Auto Clock’ in
the 'TDM Bus Settings' page (see Section 4.11.4).
• To delete a previously configured trunk, set the parameter 'Protocol Type' to
None.
b. From the 'Clock Master' drop-down list, select the trunk's clock source:
♦ Recovered: clock source is recovered from the trunk.
♦ Generated: clock source is provided by the internal TDM bus clock source
(according to the parameter 'TDM Bus Clock Source' – see Section 4.11.4
on page 49).
c. From the 'Line Code' drop-down list, select the line code:
♦ B8ZS (bipolar 8-zero substitution) for T1 trunks only
♦ HDB3 (high-density bipolar 3) for E1 trunks only
♦ AMI (for E1 and T1)
d. From the 'Framing Method' drop-down list, select the required framing method.
For E1 trunks always set this parameter to Extended Super Frame.
e. To configure whether the trunk connected to the PBX is 'User' or 'Network' side,
from the 'ISDN Termination' drop-down list, select User side or Network side.
5. Continue configuring the trunk according to your requirements.
6. When you have completed the configuration, click the Apply Trunk Settings
button to apply the changes to the selected trunk.
7. On the toolbar, click Burn to save the changes to the Enhanced gateway flash
memory.
8. Reset the device with a burn to flash for this setting to take effect (see Section 4.16
on page 70).
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