This object models cellular interfaces and access points. Enables or disables roaming. Current roaming status. {{numentries}} {{numentries}} Cellular interface table (a stackable interface object as described in {{bibref|TR-181i2|Section 4.2}}). Each instance of this object models a cellular modem with a single radio and a single {{object|USIM}}. Enables or disables the interface. This parameter is based on ''ifAdminStatus'' from {{bibref|RFC2863}}. The current operational state of the interface (see {{bibref|TR-181i2|Section 4.2.2}}). {{enum}} When {{param|Enable}} is {{false}} then {{param}} SHOULD normally be {{enum|Down}} (or {{enum|NotPresent}} or {{enum|Error}} if there is a fault condition on the interface). When {{param|Enable}} is changed to {{true}} then {{param}} * SHOULD change to {{enum|Up}} if and only if the interface is able to transmit and receive network traffic. * SHOULD change to {{enum|Dormant}} if and only if the interface is operable but is waiting for external actions before it can transmit and receive network traffic (and subsequently change to {{enum|Up}} if still operable when the expected actions have completed) * SHOULD remain in the {{enum|Error}} state if there is an error or other fault condition detected on the interface * SHOULD remain in the {{enum|NotPresent}} state if the interface has missing (typically hardware) components; it SHOULD change to {{enum|Unknown}} if the state of the interface can not be determined for some reason. Because the interface includes layer 1 the {{enum|LowerLayerDown}} value SHOULD never be used. This parameter is based on ''ifOperStatus'' from {{bibref|RFC2863}}. Corresponds to {{enum|GPRS|CurrentAccessTechnology}}, {{enum|UMTS|CurrentAccessTechnology}}, {{enum|LTE|CurrentAccessTechnology}} etc ''ATTACHED'' status Corresponds to {{enum|GPRS|CurrentAccessTechnology}}, {{enum|UMTS|CurrentAccessTechnology}}, {{enum|LTE|CurrentAccessTechnology}} etc ''DETACHED'' status The textual name of the interface as assigned by the CPE. The accumulated time in {{units}} since the interface entered its current operational state. {{list}} {{reference|an interface object that is stacked immediately below this interface object}} See {{bibref|TR-181i2|Section 4.2.1}}. Note: Since {{object}} is a layer 1 interface, it is expected that {{param}} will not be used. Indicates whether the interface points towards the Internet ({{true}}) or towards End Devices ({{false}}). For example: * For an Internet Gateway Device, {{param}} will be {{true}} for all WAN interfaces and {{false}} for all LAN interfaces. * For a standalone WiFi Access Point that is connected via Ethernet to an Internet Gateway Device, {{param}} will be {{true}} for the Ethernet interface and {{false}} for the WiFi Radio interface. * For an End Device, {{param}} will be {{true}} for all interfaces. International Mobile Station Equipment Identity number, represented as a 15 digit string (digits 0-9). Access technologies supported by the interface. GSM with GPRS GSM with EDGE UMTS with High Speed Packet Access (HSPA {{bibref|3GPP-HSPA}}) 5G New Radio Preferred access technology. Access technology that is currently in use. List of available networks. Name of the network which will be used, or {{empty}} if the network is selected automatically. The value is {{empty}} if no network is found, or if the network specified in {{param|NetworkRequested}} is not found. The received signal strength in {{units}}. The allowed values depend on {{param|CurrentAccessTechnology}}: * For {{enum|GPRS|SupportedAccessTechnologies}}, {{enum|EDGE|SupportedAccessTechnologies}} the range is -111 {{units}} to -49 {{units}} * For {{enum|UMTS|SupportedAccessTechnologies}}, {{enum|UMTSHSPA|SupportedAccessTechnologies}} the range is -117 {{units}} to -54 {{units}} * For {{enum|LTE|SupportedAccessTechnologies}}, {{enum|NR|SupportedAccessTechnologies}} the range is -117 {{units}} to -25 {{units}} Note: An undetectable signal is indicated by the appropriate lower limit, e.g. -117 {{units}} for LTE. The Reference Signal Received Power in {{units}} for {{enum|LTE|SupportedAccessTechnologies}}, {{enum|NR|SupportedAccessTechnologies}} values of {{param|CurrentAccessTechnology}}: * The valid range of RSRP values from worst to best is -140 {{units}} to -44 {{units}} The Reference Signal Received Quality in {{units}} for {{enum|LTE|SupportedAccessTechnologies}}, {{enum|NR|SupportedAccessTechnologies}} values of {{param|CurrentAccessTechnology}}: * RSRQ is calculated using RSSI and RSRP values using RSRQ = (N*RSRP)/RSSI where N is the number of resource blocks (bandwidth). * The valid range of RSRP values from worst to best is -20 {{units}} to -3 {{units}} The current maximum attainable data rate upstream (expressed in {{units}}). The current maximum attainable data rate downstream (expressed in {{units}}). USIM (Universal Subscriber Identity Module or SIM card) parameters for the interface. The current status of the USIM card. No card available Card is available but not verified Card can be used; either valid PIN was entered, or PIN check is deactivated USIM is blocked because the maximum number of invalid PIN entries was exceeded An error was detected with the card International Mobile Subscriber Identity represented as a string with either 14 or 15 digits (digits 0-9). The first 3 digits are the mobile country code (MCC), which are followed by the mobile network code (MNC), either 2 digits (European standard) or 3 digits (North American standard), followed by the mobile subscription identification number (MSIN). Integrated Circuit Card Identifier represented as a string of up to 20 digits (digits 0-9). The number is composed of the following parts: * Major industry identifier (MII), 2 fixed digits, 89 for telecommunication purposes. * Country code, 1–3 digits, as defined by ITU-T recommendation {{bibref|ITU-E.164}}. * identifier, 1–4 digits. * Individual account identification number. Its length is variable, but every number under one IIN will have the same length. * Single check digit calculated from the other digits using the Luhn algorithm. For cards using an ICCID according to {{bibref|ITU-E.118}} the maximum length is 19 Digits, for GSM cards 20 digits. Mobile Subscriber Integrated Service Digital Network Number, a number uniquely identifying a subscription in a GSM, UMTS, or LTE mobile network. {{bibref|ITU-E.164}} Controls the PIN verification of the USIM card. Check the PIN with each access to a new network Check the PIN with first access after (re)boot Disable the PIN check Allows the Controller to change the USIM PIN used for SIM card activation. Throughput statistics for this interface. The CPE MUST reset the interface's Stats parameters (unless otherwise stated in individual object or parameter descriptions) either when the interface becomes operationally down due to a previous administrative down (i.e. the interface's {{param|#.Status}} parameter transitions to a down state after the interface is disabled) or when the interface becomes administratively up (i.e. the interface's {{param|#.Enable}} parameter transitions from {{false}} to {{true}}). Administrative and operational interface status is discussed in {{bibref|TR-181i2|section 4.2.2}}. The total number of bytes transmitted out of the interface, including framing characters. The total number of bytes received on the interface, including framing characters. The total number of packets transmitted out of the interface. The total number of packets received on the interface. The total number of outbound packets that could not be transmitted because of errors. The total number of inbound packets that contained errors preventing them from being delivered to a higher-layer protocol. The total number of packets requested for transmission which were not addressed to a multicast or broadcast address at this layer, including those that were discarded or not sent. The total number of received packets, delivered by this layer to a higher layer, which were not addressed to a multicast or broadcast address at this layer. The total number of outbound packets which were chosen to be discarded even though no errors had been detected to prevent their being transmitted. One possible reason for discarding such a packet could be to free up buffer space. The total number of inbound packets which were chosen to be discarded even though no errors had been detected to prevent their being delivered. One possible reason for discarding such a packet could be to free up buffer space. The total number of packets that higher-level protocols requested for transmission and which were addressed to a multicast address at this layer, including those that were discarded or not sent. The total number of received packets, delivered by this layer to a higher layer, which were addressed to a multicast address at this layer. The total number of packets that higher-level protocols requested for transmission and which were addressed to a broadcast address at this layer, including those that were discarded or not sent. The total number of received packets, delivered by this layer to a higher layer, which were addressed to a broadcast address at this layer. The total number of packets received via the interface which were discarded because of an unknown or unsupported protocol. Cellular Access Point table. Each entry is identified by an {{param|APN}} (Access Point Name) that identifies a gateway between the mobile network and another computer network. Enables or disables the Access Point. Access Point Name. Username used to authenticate the CPE when making a connection to the Access Point. Password used to authenticate the CPE when making a connection to the Access Point. Proxy server IP address. Proxy server port. Reference to the interface with which the access point is associated.