GPRS Manager

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EMDK For Android - 13.0

Overview

The GPRS Manager (GprsMgr) administers Access Point Name (APN) settings for the General Packet Radio Service (GPRS) network used by the device. In general terms, an APN acts as a bridge between a device's carrier network and the internet or other packet data networks, and stores preferences for security, multimedia messaging (MMS) and other services to which the device might require access.

ABOUT VERIZON NETWORKS: No new APNs can be added to Verizon networks, and existing APNs must not be renamed. All access points for use on Verizon networks must retain their default name to ensure proper service and maintenance.

Main Functionality

  • Create multiple APNs
  • Set default APN
  • Remove or replace old APNs
  • Remove all APNs
  • Select a Mobile Virtual Network Operator (MVNO) type:
    • SPN
    • INMI
    • GID
    • ICCID
  • Define Custom APN parameters, including:
    • Mobile Country Code
    • MMS Port, Proxy and Center
    • Mobile Network Code
    • Custom Port, Proxy, Server and Type
    • Authentication type (PAP, CHAP, both or none)
    • MVNO match data
    • IPv4, IPv6 or IPv4/IPv6 "dual-stack" transport protocol

About WWAN Communications

Devices equipped with Wireless Wide Area Network (WWAN) or cellular data capabilities can support one or more of the following WWAN technology types:

  • GPRS is a modulation method used to enable data communications over Global System for Mobile Communications (GSM) cellular networks. A key characteristic of GPRS networks is the Subscriber Identity Module (SIM) card, which securely stores the mobile subscriber identity (IMSI) number and its related key, which are used to identify and authenticate subscribers. Inserting a SIM card allows basic cellular service (including voice and text messaging over a GSM network) to be established. However, cellular data services may require additional configuration that cannot be performed based solely on the information provided by the SIM card.

  • Code Division Multiple Access (CDMA) is a modulation method used in many mobile phone standards such as cdmaOne, CDMA2000 (the 3G evolution of cdmaOne), and WCDMA. A key characteristic of CDMA networks is its lack of a SIM Card, which often often requires activation through a manual process between the device user and the cellular provider to configure voice, text messaging and cellular data services.

  • LTE (Long-Term Evolution, 4G) is a modulation method that can extend CDMA and GPRS into 4G. As with GPRS, LTE networks use a SIM card to securely store the mobile subscriber identity (IMSI) number and its related key, which are used to identify and authenticate subscribers. LTE SIM cards contain additional information that allows cellular data services to be activated without the manual configuration process associated with CDMA.

Custom APN Settings

Devices operating on GSM networks and that use GPRS cellular data sometimes require additional information not provided by the SIM card. This information is often referred to as the Access Point Name (APN), but can include more than simply the name of an access point. An APN identifies the packet data network (PDN) to which a mobile data user requires access and also sometimes defines other available services. Configuring a device to use a particular APN generally requires the name of the Access Point plus a user name and password to connect via that Access Point.

A GPRS-equipped Android device must generally have a suitable APN defined for each GPRS cellular data network that will be used. If a single GPRS cellular data network will be used, only one APN must be defined on the device. But if the device will operate on multiple GPRS cellular data networks, for example to enable roaming across multiple geographical regions, multiple APNs must be defined.

The Custom APN parameters in the GprsMgr permit a device administrator to create multiple APNs to match the settings required for a variety carrier networks. This allows a single GPRS-enabled WWAN device and SIM card to establish a cellular data connection on disparate cellular networks simply by changing the APN.

NOTE: The Custom parameters are "pass-through" fields; they hold sets of values in various combinations for the purpose of easily switching from one APN to another to adapt to various cellular networks. The rules for these values and settings vary by region and SIM card. Zebra recommends testing carrier-specified APN settings on a working device and SIM card before general deployment.

APN Action

Contains the list of actions that can be performed on an Access Point Name (APN).

Note: WWAN-enabled devices only.

Parm Name: GprsAction

Option Name Description Note Status Requires
1 Add/replace named APN Causes the specified APN to be added (replacing the existing APN, if any).

MX: 4.1.1+

Android API: 16+

2 Remove existing named APN Causes the specified APN to be removed.

MX: 4.1.1+

Android API: 16+

3 Remove all existing APNs Causes all existing APNs to be removed.

MX: 4.1.1+

Android API: 16+

GPRS Carrier

Used to enter whether the APN to be defined should be a standard pre-defined APN of a major GPRS carrier or if the APN should be configured by entering custom information.

Note: If an APN other than the carrier's standard public APN is desired, select "Custom" (option 0) and supply the values provided by the company for that APN.

Parm Name: GprsCarrier

Option Name Description Note Status Requires
0 Custom Indicates that the APN is not one of the pre-defined carrier APNs and should be configured by providing custom values supplied by the GPRS carrier.

MX: 4.1.1+

Android API: 16+

1 ATT (deprecated) Selects AT&T as the GPRS carrier and uses its standard public APN. SEE NOTE ABOVE.

MX: 4.1.1+

Android API: 16+

2 T-Mobile Selects T-Mobile as the GPRS carrier and uses its standard public APN. SEE NOTE ABOVE.

MX: 4.1.1+

Android API: 16+

APN Name

Used to enter the name by which the Access Point Name (APN) will be known in the device. All APN names in a device must be unique. Once an APN with a given name has been added, that name can be used to Remove that APN definition from the device or to Replace the definition of that APN with a new definition.

NOTE: This parameter does not enter the Access Point Name on the network, only the name by which the APN will be known and referenced by the device. The network name of the APN is specified in the Access Point parameter.

Input value rules:

  • String from 0–255 characters

Note: WWAN-enabled devices only

Shown if: The APN Action is "Add/replace named APN" or "Remove existing named APN"

Parm Name: ApnName

Requires:

  • MX: 4.1.1+
  • Android API: 16+

Replace If Exists

Used to enter whether an existing APN should be replaced on the device if a new one of the same name is created. If "False" is selected, any attempt to replace an existing APN on the device will fail and generate an error in the Result XML.

Shown if: The APN Action is "Add/replace named APN"

Parm Name: ReplaceIfExisting

Option Name Description Note Status Requires
1 true Causes an APN already defined on the device to be replaced by a new one of the same name.

MX: 4.1.1+

Android API: 16+

0 false Prevents an existing APN from being replaced if a new one of the same name is created.

MX: 4.1.1+

Android API: 16+

Make Default APN

Used to enter whether a new APN being added should be made the default, or the most preferred APN. When connecting automatically, the system will attempt to use the default APN, if available, before considering others in the list.

Shown if: The APN Action is "Add/replace named APN"

Parm Name: MakeDefault

Option Name Description Note Status Requires
1 true Causes a new APN to be set as the default APN.

MX: 4.1.1+

Android API: 16+

0 false Prevents any change to the current default APN.

MX: 4.1.1+

Android API: 16+

Authentication Type

Used to enter the authentication method for the selected APN. Allows an APN to be created with a pre-specified authentication protocol.

Note: WWAN-enabled devices only

Parm Name: CustomAuthType

Option Name Description Note Status Requires
0 Do not change This value (or the absence of this parm from the XML) causes no change; any previously selected setting is retained.

MX: 8.3+

Android API: 23+

1 None Selects no authentication.

MX: 8.3+

Android API: 23+

2 PAP Selects Password Authentication Protocol (PAP) as the authentication method.

MX: 8.3+

Android API: 23+

3 CHAP Selects Challenge Authentication Protocol (CHAP) as the authentication method.

MX: 8.3+

Android API: 23+

4 PAP OR CHAP Sets the APN to accept PAP or CHAP as the authentication method.

MX: 8.3+

Android API: 23+

Access Point Name

Used to enter the name by which the desired APN is known on the network. This value is generally obtained from the GPRS carrier that provides the APN (for example, "wap.cingular" is the name of an APN commonly used by AT&T). This is relevant only when the value chosen for the GPRS carrier was "Custom" since otherwise the APN values for the pre-defined APN will be provided automatically based on the selected GPRS carrier.

Input value rules:

  • String from 0–255 characters

Note: WWAN-enabled devices only

Shown if: The APN Action is "Add/replace named APN" and the GPRS Carrier is "Custom"

Parm Name: ATTAccessPoint, TMobileAccessPoint, CustomAccessPoint

Requires:

  • MX: 4.1.1+
  • Android API: 16+

User Name

Used to enter a User Name to authenticate on the APN being added. The value is generally obtained from the GPRS carrier that provides the APN (for example, "WAP.CINGULARGPRS.COM" is the User Name commonly used by AT&T to authenticate on its APNs). This is relevant only when the value chosen for GPRS Carrier was "Custom" since otherwise the APN values for the predefined APN will be provided automatically based on the selected GPRS carrier.

Note: If an empty (length of 0) value is specified, no User Name is used. This should generally be done only if the GPRS carrier indicates that authentication with a user name is not required for a given APN.

Input value rules:

  • String from 0–255 characters

Shown if: The APN Action is "Add/replace named APN" and the GPRS Carrier is "Custom"

Parm Name: AttUserName, TmobileUserName, CustomUserName

Requires:

  • MX: 4.1.1+
  • Android API: 16+

Custom Protocol

Used to enter a custom transport protocol for the selected APN, overriding the APN's default protocol.

Note: WWAN-enabled devices only

Parm Name: CustomProtocol

Option Name Description Note Status Requires
0 Do not change This value (or the absence of this parm from the XML) causes no change; any previously selected setting is retained.

MX: 9.3+

1 IPv4 Selects IPv4 as the transport protocol.

MX: 9.3+

2 IPv6 Selects IPv6 as the transport protocol.

MX: 9.3+

3 IPv4/IPv6 Selects the IPv4/IPv6 "dual-stack" as the transport protocol.

MX: 9.3+

Custom Roaming Protocol

Used to enter a custom transport protocol for the selected APN when roaming is enabled, overriding the APN's default protocol.

Note: WWAN-enabled devices only

Parm Name: CustomRoamingProtocol

Option Name Description Note Status Requires
0 Do not change This value (or the absence of this parm from the XML) causes no change; any previously selected setting is retained.

MX: 9.3+

1 IPv4 Selects IPv4 as the transport protocol for roaming.

MX: 9.3+

2 IPv6 Selects IPv6 as the transport protocol for roaming.

MX: 9.3+

3 IPv4/IPv6 Selects IPv4/IPv6 "dual-stack" as the transport protocol for roaming.

MX: 9.3+

Password

Used to enter a Password that to authenticate on the APN being added. The value is generally obtained from the GPRS carrier that provides the APN (for example, "CINGULAR1" is the password commonly used by AT&T to authenticate on its APNs). This is relevant only when the value chosen for GPRS Carrier was "Custom" since otherwise the APN values for the predefined APN will be provided automatically based on the selected GPRS carrier.

NOTE: If an empty (length of 0) value is specified, no Password is used. This should generally be done only if the GPRS carrier indicates that authentication with a password is not required for a given APN.

Input value rules:

  • String from 0–255 characters

Shown if: The APN Action is "Add/replace named APN" and the GPRS Carrier is "Custom"

Parm Name: ATTPassword, TMobilePassword, CustomPassword

Requires:

  • MX: 4.1.1+
  • Android API: 16+

Custom MVNO Match Data

Used to enter provider-specific data based on the selected mobile virtual network operator.

Zebra recommends testing carrier-specified MVNO settings on a working device and SIM card before deployment into a production environment.

Input value rules:

  • String from 0–255 characters

Note: WWAN-enabled devices only

Shown if: The Custom MVNO Type is NOT "Do not change"

Parm Name: CustomMvnoMatchData

Requires:

  • MX: 8.4+
  • Android API: 23+

Custom MCC

Used to enter the Mobile Country Code (MCC). Custom parameters are "pass-through" fields; they hold sets of values in various combinations for the purpose of easily switching from one APN to another to adapt to various cellular networks. The rules for these values and settings vary by region and SIM card.

Zebra recommends testing carrier-specified APN settings on a working device and SIM card before deployment.

Input value rules:

  • String from 0–255 characters

Shown if: The APN Action is "Add/replace named APN" and the GPRS Carrier is "Custom"

Parm Name: CustomMcc

Requires:

  • MX: 6.1+
  • Android API: 19+

Custom MMSC

Used to enter the Multimedia Messaging Service Center (MMSC), the store-and-forward server for the carrier. Custom parameters are "pass-through" fields; they hold sets of values in various combinations for the purpose of easily switching from one APN to another to adapt to various cellular networks. The rules for these values and settings vary by region and SIM card.

Zebra recommends testing carrier-specified APN settings on a working device and SIM card before deployment.

Input value rules:

  • String from 0–255 characters

Shown if: The APN Action is "Add/replace named APN" and the GPRS Carrier is "Custom"

Parm Name: CustomMmsc

Requires:

  • MX: 6.1+
  • Android API: 19+

Custom MMS Port

Used to enter the Multimedia Messaging Service (MMS) Port. Custom parameters are "pass-through" fields; they hold sets of values in various combinations for the purpose of easily switching from one APN to another to adapt to various cellular networks. The rules for these values and settings vary by region and SIM card.

Zebra recommends testing carrier-specified APN settings on a working device and SIM card before deployment.

Input value rules:

  • String from 0–255 characters

Shown if: The APN Action is "Add/replace named APN" and the GPRS Carrier is "Custom"

Parm Name: CustomMmsPort

Requires:

  • MX: 6.1+
  • Android API: 19+

Custom MMS Proxy

Used to enter the Multimedia Messaging Service (MMS) Proxy. Custom parameters are "pass-through" fields; they hold sets of values in various combinations for the purpose of easily switching from one APN to another to adapt to various cellular networks. The rules for these values and settings vary by region and SIM card.

Zebra recommends testing carrier-specified APN settings on a working device and SIM card before deployment.

Input value rules:

  • String from 0–255 characters

Shown if: The APN Action is "Add/replace named APN" and the GPRS Carrier is "Custom"

Parm Name: CustomMmsProxy

Requires:

  • MX: 6.1+
  • Android API: 19+

Custom MNC

Used to enter the Mobile Network Code (MNC). Custom parameters are "pass-through" fields; they hold sets of values in various combinations for the purpose of easily switching from one APN to another to adapt to various cellular networks. The rules for these values and settings vary by region and SIM card.

Zebra recommends testing carrier-specified APN settings on a working device and SIM card before deployment.

Input value rules:

  • String from 0–255 characters

Shown if: The APN Action is "Add/replace named APN" and the GPRS Carrier is "Custom"

Parm Name: CustomMnc

Requires:

  • MX: 6.1+
  • Android API: 19+

MVNO Type

Used to enter the type of mobile virtual network operator (MVNO) used by an APN. An MVNO is a wireless network service provider that does not own the infrastructure on which its services are provided.

Note: WWAN-enabled devices only

Parm Name: CustomMvnoType

Option Name Description Note Status Requires
0 Do not change This value (or the absence of this parm from the XML) causes no change; any previously selected setting is retained.

MX: 8.4+

Android API: 23+

1 None Selects no APN MVNO type.

MX: 8.4+

Android API: 23+

2 spn Enables the Service Provider Name to be specified.

MX: 8.4+

Android API: 23+

3 imsi Enables the IMSI to be specified.

MX: 8.4+

Android API: 23+

4 gid Enables the Group Identifier to be specified.

MX: 8.4+

Android API: 23+

5 iccid Enables the Integrated Circuit Card Identifier to be specified.

MX: 8.4+

Android API: 23+

Custom Port

Used to enter a custom port. Custom parameters are "pass-through" fields; they hold sets of values in various combinations for the purpose of easily switching from one APN to another to adapt to various cellular networks. The rules for these values and settings vary by region and SIM card.

Zebra recommends testing carrier-specified APN settings on a working device and SIM card before deployment.

Input value rules:

  • String from 0–255 characters

Shown if: The APN Action is "Add/replace named APN" and the GPRS Carrier is "Custom"

Parm Name: CustomPort

Requires:

  • MX: 6.1+
  • Android API: 19+

Custom Proxy

Used to enter a custom proxy. Custom parameters are "pass-through" fields; they hold sets of values in various combinations for the purpose of easily switching from one APN to another to adapt to various cellular networks. The rules for these values and settings vary by region and SIM card.

Zebra recommends testing carrier-specified APN settings on a working device and SIM card before deployment.

Input value rules:

  • String from 0–255 characters

Shown if: The APN Action is "Add/replace named APN" and the GPRS Carrier is "Custom"

Parm Name: CustomProxy

Requires:

  • MX: 6.1+
  • Android API: 19+

Custom Server

Used to enter the custom server. Custom parameters are "pass-through" fields; they hold sets of values in various combinations for the purpose of easily switching from one APN to another to adapt to various cellular networks. The rules for these values and settings vary by region and SIM card.

Zebra recommends testing carrier-specified APN settings on a working device and SIM card before deployment.

Input value rules:

  • String from 0–255 characters

Shown if: The APN Action is "Add/replace named APN" and the GPRS Carrier is "Custom"

Parm Name: CustomServer

Requires:

  • MX: 6.1+
  • Android API: 19+

Custom Type

Used to enter a custom type. Custom parameters are "pass-through" fields; they hold sets of values in various combinations for the purpose of easily switching from one APN to another to adapt to various cellular networks. The rules for these values and settings vary by region and SIM card.

Zebra recommends testing carrier-specified APN settings on a working device and SIM card before deployment.

Input value rules:

  • String from 0–255 characters

Shown if: The APN Action is "Add/replace named APN" and the GPRS Carrier is "Custom"

Parm Name: CustomType

Requires:

  • MX: 6.1+
  • Android API: 19+

Examples

Add AT&T GPRS APN


<wap-provisioningdoc>
    <characteristic type="GprsMgr" version="4.2" >
    <parm name="GprsAction" value="1"/>
    <parm name="GprsCarrier" value="1"/>
        <characteristic type="gprs-details">
            <parm name="ApnName" value="myATT"/>
            <parm name="ReplaceIfExisting" value="1"/>
            <parm name="MakeDefault" value="1"/>
        </characteristic>
        <characteristic type="att-details">
            <parm name="AttAccessPoint" value="wap.cingular"/>
            <parm name="AttUserName" value="WAP@CINGULARGPRS.COM"/>
            <parm name="AttPassword" value="CINGULAR1"/>
        </characteristic>
    </characteristic>
</wap-provisioningdoc>

Add T-Mobile GPRS APN


<wap-provisioningdoc>
    <characteristic type="GprsMgr" version="4.2" >
    <parm name="GprsAction" value="1"/>
    <parm name="GprsCarrier" value="2"/>
        <characteristic type="gprs-details">
            <parm name="ApnName" value="myTMobile"/>
            <parm name="ReplaceIfExisting" value="0"/>
            <parm name="MakeDefault" value="1"/>
        </characteristic>
        <characteristic type="tmobile-details">
            <parm name="TmobileAccessPoint" value="internet3.voicestream.com"/>
            <parm name="TmobileUserName" value=""/>
            <parm name="TmobilePassword" value=""/>
        </characteristic>
    </characteristic>
</wap-provisioningdoc>

Add Custom GPRS APN


<wap-provisioningdoc>
    <characteristic type="GprsMgr" version="4.2" >
    <parm name="GprsAction" value="1"/>
    <parm name="GprsCarrier" value="0"/>
        <characteristic type="gprs-details">
            <parm name="ApnName" value="myCustom"/>
            <parm name="ReplaceIfExisting" value="1"/>
            <parm name="MakeDefault" value="1"/>
        </characteristic>
        <characteristic type="custom-details">
            <parm name="CustomAccessPoint" value="apn"/>
            <parm name="CustomUserName" value="user"/>
            <parm name="CustomPassword" value="pass"/>
        </characteristic>
    </characteristic>
</wap-provisioningdoc>

Remove Existing Named APN


<wap-provisioningdoc>
    <characteristic type="GprsMgr" version="4.2" >
        <parm name="GprsAction" value="2"/>
        <characteristic type="gprs-details">
            <parm name="ApnName" value="myTMobile"/>
        </characteristic>
    </characteristic>
</wap-provisioningdoc>

Remove All Existing APNs


<wap-provisioningdoc>
    <characteristic type="GprsMgr" version="4.2" >
        <parm name="GprsAction" value="3"/>
    </characteristic>
</wap-provisioningdoc>