User-To-User Signalling (Uus1); Explicit Call Transfer (Ect) - Siemens Hicom 150 E Office Service Manual

Hicom 150 E Office Rel.1.0 Service Manual - 7.13 Euro-ISDN features

7.13.17 User-to-User Signalling (UUS1)

Definition
This feature allows messages to be exchanged between terminals during connection setup. The
network transmits the message transparently; only the length is checked. Three UUS services are
available:
UUS1 - Information is exchanged in control messages for connection setup and during
connection release.
UUS2 - Information is exchanged during the ringing phase. The number of messages is limited
to 2 per route. Available for telecommunications ports only.
UUS3 - Information is exchanged during a connection`s active state.
UUS1 only is currently supported.
Model-Specific Data
Subject
Feature available in
HW requirements
SW requirements
CO feature
Extension feature
Dependencies/Limitations
Subject
USS1 In the case of a multi-device connection, the user must ensure that only one device
transmits a message to an incoming call.
USS1 Only USS1 is supported.

7.13.18 Explicit Call Transfer (ECT)

Definition
An extension with 2 calls can connect the other two call parties to one another. One of the calls must
already have been set up. Both screened and unscreened transfer are possible.
Model-Specific Data
Subject
Feature available in
HW requirements
SW requirements
http://cmweb01.mch.pn.siemens.de/e_doku/en/h150/h15/30/sh/2/15_713.htm (13 of 16) [06/04/2000 13:11:54]
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OfficePoint
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OfficePoint
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OfficeOne
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OfficeOne
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