SHORE TEL Ascom IP-DECT User manual

Abstract
The Ascom IP-DECT System is a wireless telephony system that utilizes the standard LAN/WAN
infrastructure from the ShoreTel IP-PBX to the IP-DECT Base Station/IP-DECT gateway and then a DECT
protocol from the Base Station to the Handset. Combining the ShoreTel IP-PBX with an Ascom IP-DECT
System, allows our customers the opportunity to utilize their existing wireless infrastructure, ShoreTel’s
unique distributed call control architecture and Ascom’s dedicated DECT voice path.
Table of Contents
Overview................................................. 2
Features and Benefits ................................ 2
Ascom IP-DECT handsets:............................. 2
Ascom Overview and Contact....................... 4
Ascom Product Information ......................... 5
Architecture Overview ............................... 6
Requirements, Certification and Limitations ... 6
Version Support ........................................ 7
Certification Testing Results Summary........... 8
Table 1: Basic Test Cases..............................8
Table 2: Extended Feature Test Cases.............9
Remarks.................................................10
Configuration Overview.............................10
ShoreTel Configuration..............................10
Ascom Configuration.................................23
Configure the Master IP-DECT Base Station or the IP-
DECT Gateway.......................................... 23
Configure the Ascom IP-DECT Base Station ...... 35
Ascom DECT Handset Configuration ............... 44
Ascom Troubleshooting .............................44
Ascom DECT Handset Registration Verification . 44
Ascom DECT Handset Function Verification ..... 45
Ascom Technical Support...........................45
Document and Software Copyrights..............46
Trademarks ............................................46
Disclaimer ..............................................46
Company Information................................46
ShoreTel tests and validates the interoperability of the Member's solution with ShoreTel's published
software interfaces. ShoreTel does not test, nor vouch for the Member's development and/or quality
assurance process, nor the overall feature functionality of the Member's solution(s). ShoreTel does not
test the Member's solution under load or assess the scalability of the Member's solution. It is the
responsibility of the Member to ensure their solution is current with ShoreTel's published interfaces.
The ShoreTel Technical Support organization will provide Customers with support of ShoreTel's
published software interfaces. This does not imply any support for the Member's solution directly.
Customers or reseller partners will need to work directly with the Member to obtain support for their
solution.
Innovation
Network App Note
TPP: 10111
Date: January, 2012
Product: ShoreTel |Ascom IP-DECT System version: ShoreTel 12.1

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Overview
This Application Note details the steps for creating a SIP VoIP-enabled wireless network using Digital
Enhanced Cordless Telecommunications (DECT) with connectivity that enables interoperability
between the Ascom IP-DECT SIP solutions with ShoreTel’s IP-PBX. The specific calling features that
were verified to operate correctly include transfer (attended and unattended), hold/return from hold,
caller ID operation, call forwarding (unconditional, on busy/no answer and clear), pickup groups, call
pickup, bridged appearances, and voicemail Message Waiting Indicator (MWI).
Features and Benefits
Ascom IP-DECT handsets:
•The Ascom d41 is targeted for users in office environments with a need for a handset with high
quality voice and easy access to PBX features.
•The Acom d62 is targeted towards users in medium demanding environments such as hospitals, for
users with a need for messaging or alarm functionality.
•The Ascom d81 is the top of the line handset in the Ascom DECT portfolio It is an extremely
robust handset for demanding environments intended for professional users who need to be
reachable by voice and messages.
•Professional messaging
•Standards based solution
•Wide range of handsets from office to ruggedized and explosion safe
•Longest industry talk time
Ascom IP-DECT Base Station:
•Dedicated VoIP wireless base station
•Cost efficient mobility solution
•Provides unmatched scalability (1,000 base stations per handover domain and 100,000 users per
system)
•Utilizes DECT encryption to prevent eavesdropping
•Utilizes Ethernet backbone for wired infrastructure (shared or dedicated)
•Provides seamless handovers with over-air synchronization

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Ascom IP-DECT Gateway:
•With the Ascom IP-DECT gateway, existing DECT systems can be upgraded with IP telephony
functionality in a secure radio environment.
•The IP-DECT gateway is compatible with all currently available and previous Ascom legacy
DECT base stations.

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Ascom Overview and Contact
Sales support for the Ascom IP-DECT Solution can be obtained through the following:
For local US/Canada:
• Phone: 1-877-71ASCOM or 1-877-712-7266
• Internet: http://www.ascom.us/us-en/index-us/products-solutions/sales-us.htm (for your Regional
Sales Director)
• Email: [e-mail] (for Technical support)
For international customer:
• Internet: www.ascom.com/ws and select your country of interest, to find local sales and support
contact information.

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Ascom Product Information
Ascom IP-DECT Base Stations and IP-DECT Gateway
IPBS1 IPBS2 IP-DECT Gateway (IPBL)
Ascom DECT handsets
d41 d62 d81

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Architecture Overview
The network diagram shown below illustrates the testing environment used for compliance testing. The
network consists of: a ShoreTel Shore Ware Director, a ShoreTel Personal Call Manager, three different
models of ShoreTel IP telephones (IP110, IP230, and IP560), three different Ascom DECT handsets
(d41, d62 and d81), one non wireless non IP telephone, two Ascom IP-DECT Base Stations/IP-DECT
Gateway (Master, Standby Master) and a wireless network infrastructure providing network services
such as DHCP, and TFTP.
Requirements, Certification and Limitations
The following is required in order to configure the IP-DECT system:
• PC
• 10/100base-T Ethernet connection
Web Browser Requirements:
To use the interface properly, the web browser has to meet the following requirements:
OfficeM

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• HTTP 1.1 protocol
• HTML 4.0 protocol
• XML/XSL Version 1.0
The GUI has been tested with Internet Explorer 8.x, but can also be operated with other browsers in
compliance with the requirements above.
Version Support
The DECT handset software versions does not directly affect the SIP signaling interoperability towards the
ShoreTel PBX since the IP-DECT infrastructure is working as a proxy between DECT and SIP. Thus any
Ascom DECT handset and software version should work under normal operating conditions. For the
ShoreTel IP-DECT SIP interoperability testing the following version were used:
Ascom IP-
DECT Base
Station
(IPBS)
Ascom IP-
DECT
gateway
(IPBL)
Ascom IP-
DECT Base
Station (IPBS)
Ascom IP-
DECT
gateway
(IPBL)
5.0.7 5.0.7 4.x 4.x
ShoreTel
Release 8.1 
9.2 
10.x 
11.1 
12.1 
Handset version used during tests
Ascom d41/d62/d81 3.2.29
Ascom 9d24 3.78
Ascom OfficeT 1.09
Ascom OfficeM 1.17

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Certification Testing Results Summary
Table 1: Basic Test Cases
ID
Name
Description
Results
1.1
Device initialization with
static IP address
Verify successful startup and initialization of the device
up to a READY/IDLE state using a static IP address
Pass
1.2
Device reset – idle (for
static configurations)
Verify successful re-initialization of device after power
loss while device is idle
Pass
1.3
Device initialization with
DHCP
Verify successful startup and initialization of the device
up to a READY/IDLE state using DHCP
Pass
1.4
Device reset – idle (for
dynamic configurations)
Verify successful re-initialization of device after power
loss while device is idle
Pass
1.5
Verify Diffserv Code
Point support
Verify the ability to set Diffserv Code Point from SIP
DUT (device under test)
Not Tested
1.6
Verify Date and Time
Update support
Verify setting of Date and Time Update on SIP DUT
Pass
1.7
Place call
Verify successful call placement with normal dialing to a
variety of terminating phones
Pass
1.8
Receive call
Verify successful call placement with normal dialing to a
variety of terminating phones
Pass
1.9
CODEC support (DUT to
ShoreTel Phone)
Verify successful call connection and audio path using all
supported CODECs (G.711-Ulaw and G.729)
Pass
1.10
CODEC support (DUT to
SIP reference)
Verify successful call connection and audio path using all
supported CODECs (G.711-Ulaw and G.729)
Pass
1.11
CODEC negotiation
Verify successful negotiation between devices configured
with different default CODECs (G.711-Ulaw and G.729)
Pass
1.12
Hold DUT to SIP
reference
Verify successful hold and resume of connected call
Pass
1.13
Hold DUT to ShoreTel
Verify successful hold and resume of connected call
Pass
1.14
Forward
Verify successful forwarding of incoming calls
Pass *
1.15
Forward from SIP DUT
Verify successful forwarding of incoming calls
Pass *
1.16
Dual-tone multi-
frequency (DTMF)
transmission
Verify successful transmission of in-band and out-of-
band digits (RFC2833) for calls placed to and from the
DUT with a variety of other devices
Pass
RFC2833
only

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Table 2: Extended Feature Test Cases
ID
Name
Description
Notes
2.1
Call waiting
Verify appropriate notification and successful connection
of incoming call while busy with another party
Pass
2.2
Park
Verify successful park and retrieval of connected call
Pass
2.3
Transfer – blind
Verify successful blind transfer of connected call
Pass
2.4
Transfer – monitored
Verify successful monitored transfer of connected call
Pass
2.5
Conference – ad hoc
Verify successful ad hoc conference of three parties
Pass
2.6
Caller ID
Verify that Caller ID name and number is sent and
received from SIP endpoint device
Pass
**
2.7
911
Verify dialing “911” on DUT could connect with “911”
services
Not Tested
2.8
Auto Attendant Menu
Verify that calls are properly terminated on the ShoreTel
Auto Attendant menu and that you can transfer to the
desired extension.
Pass
2.9
Auto Attendant Menu
“Dial by Name”
Verify that calls are properly terminated on the ShoreTel
Auto Attendant menu and that you can transfer to the
desired extension using the “Dial by Name” feature.
Pass
2.10
Auto Attendant Menu
checking Voice Mail
mailbox
Verify that calls are properly terminated on the ShoreTel
Auto Attendant menu and that you can transfer to the
Voice Mail Login Extension.
Pass
2.11
Initiate call to a Hunt
Group
Initiate a call from DUT and verify that calls route to the
proper Hunt Group and are answered by an available
hunt group member with audio in both directions using
G.729 and G.711 codecs.
Pass
2.12
Initiate call to a
Workgroup
Initiate a call from DUT and verify that calls route to the
proper Workgroup and are answered successfully by an
available workgroup agent with audio in both directions
using G.729 and G.711 codecs.
Pass
2.13
Hunt Group Member
Verify that incoming calls to a hunt group can be
answered properly when DUT is a member of the hunt
group.
Pass
2.14
Workgroup Agent
Verify that incoming calls to a workgroup can be
answered properly when DUT is an agent of the
workgroup.
Pass
2.15
Call Forward – “FindMe”
Verify that calls are forwarded to DUT’s “FindMe”
destination.
Pass
2.16
ShoreTel Converged
Conferencing Server
Verify that calls are properly forwarded to the ShoreTel
Converged Conferencing Server and it properly accepts
the access code and you’re able to participate in the
conference bridge.
Pass
2.17
Bridged Call Appearance
(BCA) extension
Verify that calls are properly presented to all of the
phones that have BCA configured and that the call can be
answered, placed on-hold and then transferred.
Pass
* ) Call forwarding was configured from Shoretel GUI (Web Client). Local Call Forward not possible as
ShoreTel does not allow 3rd party devices to redirect calls.

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** ) Caller will see only called party’s number and not name. Called party will display the callers name.
This applies to internal calls.
Remarks
•Call forwarding has to be done via the ShoreTel user interface.
•Display information. Caller will see only called party’s number.
If A calls B. B will see A’s name but A will see only B’s number.
•Music on hold is handled locally in the handset (tone).
Configuration Overview
This document describes the major steps needed to configure the ShoreTel system and the Ascom IP DECT
handset and base station so that they work together.
ShoreTel Configuration
This section describes the ShoreTel system configuration to support the Ascom. The section is divided into
general system settings and individual user configuration needed to support the IP DECT handsets.
ShoreTel System Settings - General
The first settings to address within the ShoreTel system are the general system settings. These configurations
include the call control, the switch and the site settings. If these items have already been configured on the
system, skip this section and go on to the “ShoreTel System Settings – Individual Users” section below.
Call Control Settings
The Call Control Options within ShoreWare Director may need to be reconfigured. To configure these
settings for the ShoreTel system, log into ShoreWare Director and select “Administration”“Call
Control”and then “Options”(Figure 2).

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Figure 2 – Administration Call Control/Options
The “Call Control/Options” screen will then appear (Figure 3).

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Figure 3 – Call Control/Options Screen
•If this is an upgrade from previous ShoreTel versions, you may see a parameter named
“Always Use Port 5004 for RTP.” If so, you will need to disable this parameter by un-
checking the box and saving the setting. When enabled, SIP extension configuration will fail.
It is also important to note that this “one time” setting requires a system restart (all servers first,
then ShoreGear switches followed by IP Phones) to take effect. Once the server has been
restarted, this configuration parameter will no longer be visible, or may be grayed out. The
default for new installations is disabled, thus the parameter is not visible (as shown in Figure
3).
•Realm: The realm is used in authenticating all SIP devices. It is typically a description of the
computer or system being accessed. Changing this value will require reboot of switches
serving as SIP extensions. It is not necessary to modify this parameter to get the IP DECT
handsets functional.
•SIP session interval: Session interval value indicates the session (call) “keep alive”period.
There is no need to modify the default value of “3600” seconds.

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•SIP session refresher: The refresher setting decides if user agent client or user agent server
refreshes the session. Again, there is no need to modify the default value of “Caller (UAC).”
This allows the IP DECT handset to be in control of the session timer refresh.
Switch Settings
When allocating Ports for SIP extensions, these changes are modified by selecting
“Administration”, “Platform Hardware/Voice Switches/Primary…”, then “Primary” in
ShoreWare Director (Figure 4).
Figure 4 – Administration/Switches
This action brings up the “Switches” screen. From the “Switches” screen, simply select the name
of the switch to configure. The “Edit ShoreGear …Switch” screen will be displayed. Within the
“Edit ShoreGear …Switch” screen, define one of the “Port Type” settings from the available
ports to “100 SIP Proxy” (Figure 5), then save the change.
Note: If your installation requires more than 100 SIP extensions configure the “Port Type” as
“100 SIP Proxy” as necessary (i.e. two ports configured for “100 SIP Proxy” will provide 200 SIP
extensions).

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Figure 5 – Edit Switches
If the ShoreGear switch that you have selected has “built-in” capacity (i.e., ShoreGear
50/90/220T1/E1, etc.) for IP phones and SIP trunks, you can also remove 5 ports from the total
number available to provide the “100 SIP Proxy” configuration necessary (Figure 6).
Note: Every 5 ports you remove from the total available will result in “100 SIP Proxy” ports
being made available.
One dedicated ShoreGear 120 switch can act as a proxy for the entire site and support up to 2400
SIP phones.

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Figure 6 – ShoreGear Switch Built-in Capacity
Sites Settings
The next settings to address are the administration of sites. These settings are modified under the
ShoreWare Director by selecting “Administration” then “Sites” (Figure 7).

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Figure 7 – Administration/Sites
This selection brings up the “Sites” screen. Within the “Sites” screen, select the name of the site to
configure. The “Edit Site” screen will then appear. Scroll down to the “SIP Proxy” parameters (Figure
8).
Figure 8 – Site Screen SIP Proxies
The “Virtual IP Address” parameter is a new configuration parameter beginning with ShoreTel 8. This
“Virtual IP Address” is an IP address that can be moved to a different switch during a failure. For each
site that supports SIP extensions, one “Virtual IP Address” is defined that will act as the SIP Proxy for
the site. This IP address must be unique and static.
The ShoreTel server will assign this “Virtual IP Address” to the ShoreGear that is configured as SIP
proxy for the site. Two ShoreGear switches can be configured as SIP proxy servers for redundancy and
reliability purposes. If the primary proxy server goes down, the other proxy switch will take over the
“Virtual IP Address.” Due to this “Virtual IP Address” mechanism, SIP phones will not know if the
proxy switch goes off-line.

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Note: If you choose not to define a “Virtual IP Address,” you can only define one proxy switch, and
there is no redundancy or failover capabilities. The switches available in the “Proxy Switch 1 / 2” will
only be shown if proxy resources have been enabled on the switch.
The Admission Control Bandwidth defines the bandwidth available to and from the site. This is
important as SIP endpoints may be counted against the site bandwidth. See the ShoreTel Planning and
Installation Guide for more information about this.
Beginning with ShoreTel 8.1, we now add 11 CODECs by default. These CODECs can be grouped as
“Codec Lists” and defined in the sites page for “Inter-site” and “Intra-site” calls. See ShoreTel’s
Administration Guide for more information. The default settings will work properly with the IP DECT
handsets.
Creating SIP Extension
You need to create a user extension for the IP DECT handset. This is accomplished from ShoreWare
Director by selecting “Administration” followed by “Users…” then “Individual Users” This action
will bring up the “Individual Users” screen at the top of the page. To the right of “Add new user at
site:” select the site you wish to create the user in (from the drop down menu), and select “Go” (Figure
9).

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Figure 9 – Individual Users Settings
This action brings up the “Users” “Edit Users” screen (Figure 10).

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Figure 10 – Adding/Editing Users
Define the “First Name” and “Last Name” as you deem appropriate. ShoreWare Director will auto-assign the next
available “Number” (i.e. extension), but you can modify it to any available extension. Define the “License Type”
as needed, in this example we chose “Extension and Mailbox” although it’s not necessary to have a mailbox, and
“Professional” for“Access License”. Define the proper “User Group” and set the “Primary Phone Port” to
“SoftSwitch.”
Note: If you configured the “License Type” for “Extension-Only,” you cannot select “Any IP Phone” but
instead must set the “Home Port” for the “SoftSwitch” selection
Scroll down to the “SIP Password:” section (Figure 11).

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Figure 11 – Individual User SIP Settings
There is no default “SIP Password” it is masked with the appearance that there is, but don’t be confused to think
that there’s a default password. You can modify it to any value you wish, but be certain to note what you changed it
to, as you will need it when configuring the IP DECT handset parameters.
“Save”your changes.
SIP Profiles
ShoreWare Director’s “IP Phones…” section contains a “SIP Profiles” option. ShoreTel 12.1 comes standard with
a “_System” and “_ShorePhoneIP8000” SIP profiles (they cannot be deleted - only disabled). By default, the
Ascom IP DECT handsets utilize the “_System” profile. In order to optimize the functionality, you will need to add
a custom profile. This is accomplished from ShoreWare Director by selecting “Administration”followed by
“IP Phones”then “SIP Profiles”This action brings up the “SIP Profiles”screen. At the top of the page,
below the “SIP Profiles List”, select the “New…” radio button, as shown in Figure 12.