Unify OpenScape Cordless IP V2 User Manual

P31003C1020M1000276A9, 01/2018
OpenScape Cordless IP V2, Administrator Documentation 33
Base stations
Base station synchronisation
Requirements for LAN synchronisation
Minimum packet delay jitter is crucial for successful synchronisation over LAN. As multiple LAN traffic parameters
could have an impact on packet delay and its jitter, specific switches and maximum number of switch hops are
required, to guarantee sufficient maximum packet delay jitter.
Consider the following:
• The less switch hops, the lower the transmission delay and its jitter will be.
• The higher the bandwidth or quality of used switches is regarding packet delay and its jitter, the lower the packet
delay and the lower the packet delay jitter will be.
• Enhanced packet processing logics (like L3 switching or packet inspection) could have significant negative
impact on the resulting packet delay jitter. If possible, they should be deactivated for UNIFY BSIP2 base stations
connected switch ports.
• Significantly increased traffic load on a switch, in the range of the maximum throughput, could have significant
negative impact on the packet delay jitter.
• VLAN based prioritisation of LAN packets could be a fruitful measure to minimize packet delay and its jitter for
UNIFY BSIP2 base stations.
Hints regarding PTP deviation
LAN synchronisation is base on a two layer design:
• Native PTPv2 is used to synchronise a common reference timer along all base stations involved.
Target quality benchmark to provide sufficient PTP synchronisation along the base stations, is to have a PTP
deviation lower than 500 ns (rms). For this PTP synchronisation a few single deviations > 500 ns are
accepted and might just generate first warnings. If the PTP sync packet deviation does continuously exceed this
limit of 500 ns, the PTP synchronisation is considered broken and will lead to new start synchronisation
procedure.
• Based on the PTP synchronisation LAN master and LAN slave adjust their DECT reference timer to one
common offset to the common PTP reference timer. This common offset will be permanently monitored by an
proprietary communication.
The target quality benchmark for this synchronisation level is to see reference timer deviation by this DECT
reference timer sync packets: DECT-LAN-Sync deviation lower than 1000 ns. A good mean value would be
500 ns (rms).
To meet this criteria the switches themselves do not necessarily need to be PTP aware. But the network should
consider the above mentioned guidelines to meet this criteria.

Unify OpenScape Cordless IP V2 Specifications

General

Protocols	SIP
Battery Life (Standby Time)	Up to 150 hours
Compatibility	OpenScape Business
Connectivity	DECT
DECT Standards Supported	DECT
Range	Up to 300 meters outdoors, 50 meters indoors
Audio Quality	HD Voice (wideband audio)
Power	Rechargeable Li-Ion battery
Supported Codecs	G.711, G.722, G.729
Handset	Yes
Security	DECT encryption

Summary

OpenScape Cordless IP V2 – Introduction

Planning Your DECT Wireless Network

Prerequisite for successful operation of the OpenScape Cordless IP V2 with good call quality.

OpenScape Cordless IP V2 System Overview

Illustration and explanation of the components of the OpenScape Cordless IP V2 system.

First Steps

Package Contents

Lists the items included in the OpenScape Cordless IP V2 package.

Preparing Telephone System for Use

Steps required to prepare the telephone system for initial use.

Device Mounting Instructions

Instructions and guidelines for physically installing the OpenScape Cordless IP V2 devices.

Defining Device Roles

Configuring the device as base station, Integrator, or DECT manager.

BSIP2 Base Station Wall Mounting

Specific instructions for mounting the BSIP2 base station on a wall.

Operation Hints

Understanding LED Indicators

Explanation of the operational states indicated by the device's LED indicators.

Resetting Base Stations to Factory Settings

Procedure for resetting base stations to factory defaults using a power cycle.

Configuring the System

Using the Web Configurator

Introduction to the web configurator for setting up the DECT network and system.

Network Administration

IP Network Settings Configuration

Configuration of IP addresses, subnet masks, gateways, and DNS settings for network integration.

VLAN Network Configuration

Configuration of VLAN settings including identifier and priority for network segmentation.

Base Stations

Base Station Administration

Managing connected and pending base stations via the web configurator.

Base Station Synchronization

Configuration of synchronisation between base stations for multicell functionality.

Provider and PBX Profiles

Configuring Telephony Server Profiles

Setting up profiles for VoIP connections, including SIP server and transport details.

Mobile Devices

Mobile Device Overview

Overview of registered handsets and their status, including IPUI, username, and DECT/SIP status.

Registering and De-registering Handsets

Procedures for registering, de-registering, and configuring handset settings.

Handset Registration Centre

Tool for registering groups of handsets simultaneously or time-controlled.

Telephony Settings

General VoIP Settings

Configuration of SIP ports, timers, and security settings for VoIP connections.

Audio Quality Configuration

Settings for enabling wideband calls using the G.722 codec and configuring QoS.

Advanced Call Settings

Advanced call settings including call transfer, access codes, and area codes.

Online Directories

Corporate LDAP Directory Configuration

Configuration of LDAP servers for accessing corporate directories via handsets.

System Settings

Web Configurator Access Rights

Managing passwords and CLI access for the web configurator and device configuration.

Provisioning and Configuration

Configuring auto-configuration servers and uploading configuration files for devices.

System Security Settings

Managing certificates and HTTP authentication for secure internet communication.

Firmware Updates

Procedures for updating firmware for the DECT manager and base stations.

Save and Restore System Configuration

Saving and restoring system configuration data for backup and recovery.

Reboot and Reset Devices

Instructions for rebooting devices and resetting the system to factory settings.

Diagnostics and Troubleshooting

Status Information Overview

Overview of system operation and connected devices status via the web configurator.

Base Station Events Logging

Displaying counters for events affecting base stations, like connections and handovers.

System Incidents

Information on system incidents such as crashes, reboots, and connection drops.

System Log and SNMP Manager Configuration

Configuring system logs and SNMP manager for monitoring and data collection.

Using Handset Connected to a BSIP2 Base

Making Calls with Handset

Instructions on how to make calls using any registered handset.

Accepting Calls and Call Waiting

Procedures for answering incoming calls, including call waiting and group pickup.

Managing Multi-Participant Conversations

Features for managing calls involving multiple participants, like consultation and conference calls.

Accessing Directories on Handset

Accessing local and corporate directories via the handset.

LDAP Directory – Configuration Example

LDAP Server Access Configuration

Steps to configure access to an LDAP server for displaying directory entries on handsets.

LDAP Search Filters

Defining criteria (filters) for searching within the LDAP database.

LDAP Attributes for Display

Understanding and specifying LDAP attributes for display on handsets.

Displaying Directory Entries on Handsets

How directory entries are displayed and searched for on the handset.

Appendix

Safety Precautions

Important safety instructions and guidelines for using the device.

Technical Data

Technical Specifications

Detailed technical specifications including power consumption and general parameters.