iPECS UCP
Feature Description and Operation Manual Issue 1.3
413
8. SIP EXTENSION
8.1 SIP Phone Support
Description
The iPECS UCP incorporates basic SIP Extension service connecting SIP phones through a
VoIP channel using IETF’s standard RFC-3261 SIP protocols. SIP phones, including the
Ericsson-LG Enterprise SIP phones, register for service with or without authentication. After
registration, the SIP phone can place and receive calls, place calls on hold, transfer calls and
will have access to the features of the system through the Flexible Numbering plan using the
procedures applicable to a SLT. Some of the features supported are listed below.
In addition to the Numbering Plan features, for the Ericsson-LG Enterprise SIP phones, the
Call Forward and DND features can be synchronized using proprietary methods so that when
you activate the feature at the ELG SIP phone, the system is informed and can activate the
feature properly within the system. When Feature sync is not enabled or a 3rd party SIP
phone is employed, the phone may activate the internal Forward or DND feature but the
system cannot properly inform status to others users or control routing.
Account Code Entry
Attendant Call
Broker Call, the SIP phone must support Call Wait
Call Forward, requires Feature Sync to employ UCP Call Fwd feature.
Call Park using Unscreened (Blind) Transfer
Call Pick-Up, Group & Directed
Call Transfer, screened and unscreened, Call Waiting/Camp-on, the SIP phone
must support Call Wait
Conference Group
Conference Room
Do-Not-Disturb (DND), the SIP phones may have internal DND
Door Open
DSS/BLF, supported by Ericsson-LG Enterprise SIP phones
Emergency Page
Emergency Calling
Integrated Voice Mail
Last Number Redial
Paging
Internal/External Page
Meet Me Page
All Call Page
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