NEC SL1100 User manual

SIP TRUNKING
NEC SL1100/SV8100:
ADMINSTRATOR GUIDE 1.0
Author: BTW Product Line
Date: 22/08/2012

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Confidentiality
All information in this document is provided in confidence as per your terms and conditions
with BT and shall not be published or disclosed wholly or in part to any other party without
BT’s prior permission in writing and shall be held in safe custody. These obligations shall not
apply to information which is published or becomes known legitimately from some source
other than BT.

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Document Revision History
Release
Version
Reason for Change
Date
Author
1
1.0
Document Created
22/08/2012
BTW Product Line

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CONTENTS
DOCUMENT REVISION HISTORY ................................................................................................ 3
1INTRODUCTION ................................................................................................................ 6
2IPVS SOURCE NUMBERING REQUIREMENTS........................................................................ 7
3DEVICE CAPABILITIES AND KNOWN INTEROPERABILITY ISSUES ........................................... 8
3.1 Caveats ..................................................................................................................................................... 9
Forwarding................................................................................................................................................................ 9
Toolbar Hold and Call Control ..................................................................................................................................... 9
Off System Hold......................................................................................................................................................... 9
Codec Profiles............................................................................................................................................................ 9
T.38 Negotiation ....................................................................................................................................................... 9
Double Hold .............................................................................................................................................................. 9
Blind Transfer .......................................................................................................................................................... 10
4SOLUTION CONFIGURATION ............................................................................................ 11
5CONNECTING TO THE NEC SL1100/SV8100 ....................................................................... 12
6PROVISIONING............................................................................................................... 13
7CONNECTIVITY SPECIFIC CONFIGURATION ........................................................................ 14
8NEC IP-PBX CONFIGURATION .......................................................................................... 15
8.1 SL1100/SV8100 Security ......................................................................................................................... 16
8.2 SIP Networking........................................................................................................................................ 17
System Information Setup........................................................................................................................................ 17
SIP Server Setup ...................................................................................................................................................... 17
Authentication Information...................................................................................................................................... 18
Codec Setup ............................................................................................................................................................ 19
Incoming Type –VoIP .............................................................................................................................................. 21
Calling Party Number for Extensions ......................................................................................................................... 22
8.3 DDI Routing Table .................................................................................................................................... 23
8.4 IP Addressing .......................................................................................................................................... 24
CCPU IP Network Setup............................................................................................................................................ 24
VoIP Resource IP Address......................................................................................................................................... 25

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8.5 COS......................................................................................................................................................... 27
8.6 Trunk to Trunk Routing - Optional............................................................................................................. 28
Trunk to Trunk Transfer ............................................................................................................................................ 28
External Call Forward -COS....................................................................................................................................... 28
Trunk to Trunk Options ............................................................................................................................................ 28
8.7 Dialing Plan ............................................................................................................................................. 29
9TROUBLESHOOTING AND USEFUL INFORMATION ............................................................. 30
9.1 Checking SIP Messaging To/From the PBX.................................................................................................. 30
9.2 Device Fails to Register ............................................................................................................................ 31
9.3 Outbound Calls Fail .................................................................................................................................. 32
9.4 Inbound Calls Fail ..................................................................................................................................... 33

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1INTRODUCTION
This document describes the configuration procedures required for the NEC SL1100 and SV8100 IP-
PBX ranges to make full use of the capabilities of IPVS SIP Trunking.
These NEC IP-PBX’s are come of the many access products that interoperate with IPVS. They use the
Session Initiation Protocol (SIP) to communicate with IPVS for call control.
This guide describes the specific configuration items that are important for use with IPVS. It does not
describe the purpose and use of all configuration items on the SL1100 and SV8100, for those details,
see the relevant NEC documentation.
Interoperability testing validates that the device interfaces properly with IPVS via the SIP interface.
Qualitative aspects of the device or device capabilities not affecting the SIP interface such as display
features, functionality and performance are not covered by interoperability testing. Requests for
information and/or issues regarding these aspects should be directed to manufacturer.

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2IPVS Source Numbering Requirements
Please note that the following prerequisites must be satisfied for successful deployment:
Any SIP call must present a number with a current registration on the IPVS platform in one or more of
the following headers of the SIP message transmitted by the IP-PBX (listed in order of significance):
1. Diversion
2. P-Asserted-Identity
3. Remote-Party-Id
4. From
If you see a 604 SIP message back from IPVS then the device is not presenting the correct CLI to the
IPVS platform or the account is not present on the IPVS platform.
SIP Trunking DDI Users must have an active Public Number (DDI) on the IPVS Platform.
Legacy PBX users/extensions (who do not have a SIP Trunking User account provisioned) must present
the SIP Trunk Group number or ‘Bearer Number’ as their outbound CLI for calls to be able to traverse
the IPVS platform.

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3DEVICE CAPABILITIES AND KNOWN INTEROPERABILITY ISSUES
Comments
Device Type
IP-PBX
Verified Revisions
SL1100 - v2.0 with VOIPDB card
SV8100 - v7.0 with IPL card
Route Using TO Header
Yes
SIP Connect
Yes
Registration Capable
Yes
Codecs
G711u/G711a/G729a
See Caveats
RFC 2833 DTMF
Yes
T.38 Fax
Yes
Call Control
- Hold
- Call Waiting
- Blind Transfer
- Consultive Transfer
- Three Way Call
Yes
Yes
Yes
Yes
Yes
See Caveats
Call Services
- PBX Redirect
- IPVS CLI Blocking
- IPVS Call Pickup
Partial
Yes
Yes
See Caveats
Redirect by PBX to IPVS Voicemail
is not supported
IPVS Enhanced Features
IPVS Voicemail / Local Voicemail
Both
Voicemail MWI
No
Use IPVS Voicemail to Email or
Email Notification (Call Notify)
SIP Trunk Mobility User Features
- Call Forward Always
- Call Forward Busy
- Call Forward No Ans
- Call Forward Unreach
- Call Notify
- Intercept User
- SIM Ring
- Remote Office
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Set via Customisable Feature
Access Codes, Business Portal or
Toolbar
Toolbar
- Click-to-Dial
- Call Control
- Services
Partial
Yes
Partial
Yes
See Caveats

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3.1 Caveats
Forwarding
When a call is forwarded by a SL1100/SV8100 user/device regardless of whether it has a specific CLID
setup the default CLID for the system is always used in this scenario and therefore is what will be seen
by the destination of the forward.
Toolbar Hold and Call Control
Hold on PBX handset and Toolbar must be used together.
Off System Hold
When a hold request is sent from the IPVS platform to the SL1100/SV8100 and is not followed by an
update for Music On Hold the system will play its own hold music to the local user.
Codec Profiles
The codec profiles offered by the SL1100/SV8100 are predefined meaning the following:
The SL1100/SV8100 only offers one G711 type per profile so we recommend that this is set to A-law.
The G.729_PT profile will offer and therefore allow the use of G711 and G722 meaning that while
G729 is the primary codec it may not be used in all call scenarios.
The G.729_Fix profile will only offer G729 and therefore this will always be used.
T.38 Negotiation
Due to limitations with the current firmware the SL1100/SV8100 is unable initiate the renegotiation
of T.38 for a fax call. If the other party initiates the renegotiation the SL1100/SV8100 will accept this
and T.38 will be used. Where the SL1100/SV8100 attempts to renegotiate to T.38 the fax will
progress using G.711a pass-through with this associated limitations of this method.
Double Hold
Due to limitations with the current firmware if an external party is placed on hold by the
SL1100/SV8100 that party is then unable to in turn place the SL1100/SV8100 user on hold. This
means that any flows involving the SL1100/SV8100 user being placed on hold which include
transferring will fail.

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Blind Transfer
Please note that when blind transfering to a CO party users should press the hash (#) key at the end of
the dialled digit string for the destination before pressing transfer so that the IP-PBX is instructed that
the dialling has ended and can setup the call.