SpectraLink Versity 95 Series User manual

721-0067-000 Rev: A
October 2019
Spectralink Versity Smartphone
LTE Carrier Interoperability
Interoperability Guide: Version 1

LTE Carrier Interoperability Guide
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Copyright Notice
© 2019 Spectralink Corporation All rights reserved. SpectralinkTM, the Spectralink logo and the names
and marks associated with Spectralink’s products are trademarks and/or service marks of Spectralink
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permission of Spectralink Corporation.
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Notice
Spectralink Corporation has prepared this document for use by Spectralink personnel and customers.
The drawings and specifications contained herein are the property of Spectralink and shall be neither
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http://support.spectralink.com.
Contact Information
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[phone] [phone] [phone]
Spectralink Corporation Spectralink Europe ApS Spectralink Europe UK
2560 55th Street Bygholm Soepark 21 E Stuen 329 Bracknell, Doncastle Road
Boulder, CO 80301 8700 Horsens Bracknell, Berkshire, R612 8PE
USA Denmark United Kingdom
[e-mail] [e-mail] [e-mail]

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Contents
About This Guide............................................................... 4
Product Support ............................................................................................................... 4
Chapter 1: Deploying LTE Models .......................................... 5
Dialers and Phone Applications ...................................................................................... 5
Phone numbers................................................................................................................. 5
How Does Versity Use Both Wi-Fi and LTE? .................................................................. 6
Terms used by LTE carriers......................................................................................... 6
Terms used by facility-based Wi-Fi systems................................................................. 6
Using both types .......................................................................................................... 7
LTE behavior notes...................................................................................................... 7
Emergency Calls Using LTE ............................................................................................ 7
Versity LTE Certifications ................................................................................................ 8
Versity Channels............................................................................................................... 8
Carrier Technologies........................................................................................................ 8
SIM Card Instructions......................................................................................................10
SIM card size ..............................................................................................................10
SIM card location ........................................................................................................10
Inserting the SIM card.................................................................................................11
Removing the SIM card...............................................................................................11
Chapter 2: Telia Company................................................... 13
Implementation Specifics................................................................................................13
Wi-Fi calling (option for LTE only) ...............................................................................13
Appendix A: Spectralink References...................................... 14
Specific Documents ....................................................................................................14
White Papers ..............................................................................................................15
Conventions Used In This Document.............................................................................15
Typography.................................................................................................................15

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About This Guide
LTE is type of 4G that delivers fast connection for a mobile internet experience. It is the globally-
accepted 4G wireless standard. This interoperability guide explains how Versity LTE models
support 4G technology and how to implement Versity as an LTE smartphone. This document
also explains how specific carrier service requirements can vary and the accommodations
Spectralink has made to allow Versity smartphones to use LTE 4G with carriers that certify
Versity smartphones.
Product Support
Spectralink wants you to have a successful installation. If you have questions, please contact
the Customer Support Hotline at 1-800-775-5330.
The hotline is open Monday through Friday, 6 a.m. to 6 p.m. Mountain Time.
For Technical Support: mailto:[e-mail]
For Knowledge Base: http://support.Spectralink.com
For Return Material Authorization: mailto:[e-mail]

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Chapter 1: Deploying LTE Models
LTE is type of 4G carrier technology that delivers fast data connection for a mobile internet
experience. It is the globally-accepted 4G wireless standard. LTE offers speeds up to 10 times
faster than 3G. To use LTE, both the phone and the carrier must support it. However, not all
areas and carriers offer LTE phones and services. It is important to determine the level of
service in your area for LTE phones.
Versity is a standard, albeit ruggedized, Android smartphone running Spectralink software
based on Android 8.1 also known as “Oreo”. Versity comes in four models, two of which---9640
and 9653---support LTE 4G cellular technology in addition to facility-centric VoWLAN calling.
Dialers and Phone Applications
With two calling modalities, Versity ships with two different phone applications aka “dialers”. The
ability to use LTE calling technology is managed by the choice of app used to make the call.
•The Biz Phone app from Spectralink is used for calls that utilize the Wi-Fi network
installed in the facility.
•The Google Phone app that comes as a standard phone application in Android phones
is frequently used by a cell phone carrier but a different phone app may be specified by
the carrier.
Versity LTE models can be programmed to make both types of calls available. When both types
of calling are fully enabled, when you place an outgoing call from a phone number link you may
be given the choice of which dialer to use.
Phone numbers
The two dialers have separate phone numbers. When you place a call, the Caller ID that is
displayed to the recipient depends on which app was used to initiate the call.
•The Spectralink Biz Phone dialer uses the Wi-Fi network in the facility. Biz Phone rings
when your internal extension is called. This is your business phone number that has
been assigned by the facility using an on premise SIP PBX or cloud SIP service..
•The LTE carrier manages a network connection to a phone through a SIM card. The
carrier provides a unique phone number for each phone device. When that number is
called, it rings on the Google Phone dialer.

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Outgoing calls can use direct dialing through the carrier network connection 2G, 3G,
VoLTE or use Wi-Fi calling that places calls through a Wi-Fi network. “Wi-Fi calling”or
“VoWi-Fi” calls can be made on a Wi-Fi network installed at home or business facility or
at a café or library, provided these are able to connect to the carrier network. It's like any
other phone call, and uses the carrier-assigned number and the Google Phone app but
is distinct from a Biz Phone Wi-Fi call.
How Does Versity Use Both Wi-Fi and LTE?
For the sake of clarity, let’s define our terms.
Terms used by LTE carriers
•VoLTE refers to using LTE for calling on a carrier network connection using a dialer app
provided by or supported by the carrier (e.g., Google Dialer). Aka “Enhanced 4G LTE
Mode”
Each carrier has specific requrements for any smartphone to work on its network. Versity
can work with any carrier but must be programmed to work with the specific carrier.
Carriers require testing and certification for a smartphone to be allowed on their network.
Some carriers will allow uncertified devices but may limit functionality. Contact
Spectralink and the specific carrier for additional information. Currently Versity only has
carrier certifications with Telia.
•Wi-Fi calling refers to using a private Wi-Fi network connection such as you might have
at home or work or airport to place and receive calls using the carrier phone number and
a dialer app provided by or supported by the carrier. Aka VoWi-Fi
The Wi-Fi calling option must be enabled on both the Device side and the carrier side in
order for Wi-Fi calling to work. The carrier network includes special gateways to take the
Wi-Fi call on to their network and manage quality of service (QOS). If Wi-Fi calling option
does not appear on the carrier side, it is not supported by the carrier. Contact the carrier
if you do not see the Wi-Fi calling option.
•VoWi-Fi is synonomous with Wi-Fi calling and is the technical term.
Terms used by facility-based Wi-Fi systems
•VoWLAN refers to using a private facility-based call server and Wi-Fi Local Area
Network infrastructure to place voice calls using a private call server. Spectralink’s Biz
Phone uses VoWLAN.
For VoWLAN, the Biz Phone app uses SIP technology to place a VoIP call over the
wireless LAN---a data network with prioritized voice packets---aka VoWLAN. Call servers
are used to support users and extensions and route internal and external calls.

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•VoIP is an acronym for Voice Over Internet Protocol, a technology used by Spectralink
ond other services to provision communications over a packet-switched network. Biz
Phone uses this calling technology.
Using both types
Versity 96xx models support direct carrier calling using a dialer app provided by or supported by
the carrier (e.g., Google Phone). The carrier’s SIM card must be installed and support voice
calling. Versity 96xx models also support VoWLAN using the Biz Phone app and the supporting
infrastructure.
In situations where both types of calling are needed, provision Biz Phone for inhouse facility
calling and install a LTE SIM card for outside calling and Wi-Fi calling. When outside the facility
Wi-Fi range, the phone will use the LTE network. It will prefer Wi-Fi calling but will seamlessly
fall back to VoLTE when Wi-Fi calling is not available. When going back into the facility, LTE
direct calls and Wi-Fi calling through the carrier dialer app still works wherever LTE coverage is
available. To use Biz Phone you must have network access to the company SIP server. This
requires either being connected to the corporate Wi-Fi network or having a VPN connection
from the LTE network that allows you to connect to the SIP server. To use both Biz Phone and
carrier dialing you must disable Wi-Fi calling/VoLTE in the carrier app or in Network settings if
not available in the carrier app settings. Due to common SIP port usage across servers and
networks, carrier calling using VoLTE or WiFi-Calling and Biz Phone are mutually exclusive; you
can use both, but not at the same time. When using Biz Phone over the LTE-VPN connection
the call quality cannot be guaranteed by Spectralink as the voice traffic is treated by the carrier
as unprioitized data.
LTE behavior notes
Please note that for any Versity LTE SKU, Spectralink validates service of all Spectralink
applications and SIP communication for a corporate Wi-Fi network with our recommended
guidelines ONLY. In other environments such as LTE, VPN via LTE, VPN via Private Wi-Fi,
Spectralink applications functionality is not guaranteed and support is on best effort only.
When the device is in a location where Android switches between LTE and corporate Wi-Fi,
Versity will prioritize Wi-Fi.
In an LTE-only environment, the Biz Phone app will not be operational without the VPN
connection to the SIP server and Wi-Fi calling disabled. Communication will be via the carrier
network and a Wireless Telecom Subscription is required. A call manager can be configured so
SIP calls forward to the GSM number.
Emergency Calls Using LTE
On all Versity models, tapping EMERGENCY on a locked screen opens a Google Dialer where
the emergency number can be entered manually. The number entered will be checked against

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the list of pre-programmed emergency numbers in the Biz Phone app, if any. If it is on the list,
and if Biz Phone is configured the call will be placed by the Biz Phone app.
For LTE models, if the manually-entered number is not listed in the Biz Phone app, then it will
be checked against the emergency numbers listed by the SIM or Android. If the number is
available, the call will be placed by the Google dialer, if there is a cellular connection.
If emergency calls should be placed through the carrier cellular network, the number SHOULD
NOT BE entered in the Biz Phone app. The number must be manually entered in the Google
dialer when the emergency call feature opens, and it will be checked as above and go through
on the cellular network. Instruct your cellular users about what number to dial in an emergency.
Versity LTE Certifications
Versity has certification from these entities:
PTCRB offers certification of wireless devices according to standards developed by the
CTIA organization. It is a U.S. organization.
GCF is an independent global certification organization that offers certifications to help
ensure global interoperability between mobile devices and networks. It is a U.K organization.
Carriers: Versity is an unlocked device. With PTCRB and GCF certification most carriers
will allow Versity on their network. Some carriers certify phones and approve them for
functionality on their network. Verizon is one of these.
As of 1.6.xxx Versity is certified by Telia, a carrier that primarily operates in
Scandinavia. See Chapter 2 below.
Versity Channels
GSM: 850/900/1800/1900UMTS: B1/2/4/5/8
LTE-FDD: B1/2/3/4/5/7/8/12/13/20/25/26/28/66
LTE-TDD: B38DL
2CA(Cat6):1A-3A, 1A-7A, 1A-8A, 1A-20A,2A-2A, 2A-4A, 2A-5A, 2A-12A, 2A-13A, 2A-
66A, 3A-3A, 3C, 3A-7A, 3A-8A, 3A-20A, 3A-28A,4A-4A, 4A-5A, 4A-12A, 4A-13A, 5A-5A,
5B, 5A-66A, 7C, 7A-20A, 7A-28A, 12A-66A, 13A-66A, 25A-25A, 25A-26A, 38C,
66A+66A, 66B, 66C
Carrier Technologies
Carrier technologies have advanced along a timeline that began before 1993. The below table
outlines the technologies that are supported by Versity and their development timeline. Carriers
that use these technologies also support Versity.

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1993
2000
2010
2018
Second Gen
Third Gen
Fourth Gen
GSM
GPRS
EDGE
UMTS
HSDPA
HSUPA
HSPA+ R7
HSPA+ R8
LTE
FDD TDD
LTE
Advanced
Versity supports all of the above technologies and can function in an environment that does not
support 4G LTE in its entirety. Options include:
LTE: Voice and data
Data: 3G
Voice: GSM circuit switch
Voice: VOIP-LTE or OTT

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SIM Card Instructions
LTE phones use a “SIM“ card to store user information. A carrier will provide a SIM card for their
service and this card must be installed on Versity before it can connect to the carrier’s network.
SIM card size
The Versity SIM card port supports a “micro” size SIM card. An adapter is provided in the
Versity box for adapting a “nano” card to the micro size. Consult with your carrier to get the
nano SIM card.
Caution: Use provided micro adapter
Spectralink has found that SIM card thickness varies and these variations can
affect performance. For this reason, Spectralink provides a nano to micro adapter
with every Versity. This adapter meets our exact specifications.
For best results, use a nano card from your carrier and use the nano to micro
adapter that is provided with the Versity smartphone as described here. Do this
even if the carrier offers a micro SIM card.
This photo shows a nano to micro adapter:
SIM card location
The SIM card is inserted into a slot at the top of the battery compartment. The slot is protected
by a flap that must be pried open. Pry it from the right and rotate it into a vertical position as
shown here.