Help with initial configuration of Cisco 899G-LTE router with Movistar

[diegonchoo]

Hi everyone,

I have a Cisco 899G-LTE router with a Movistar Chile SIM card, and I'd like to know how to perform the initial configuration so that it connects to the internet via LTE.

I've been searching for documentation or working examples, but most of what I find doesn't match my model or lacks a clear step-by-step guide. All I need is to get the router to connect to the internet using the SIM.

If anyone has an official guide, documentation, or working config to share, I'd really appreciate it.

Thanks in advance!

Router#show run
Building configuration...

Current configuration : 2362 bytes
!
version 15.6
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Router
!
boot-start-marker
boot-end-marker
!
!
!
no aaa new-model
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!

!
!
!
!
ip cef
no ipv6 cef
!
!
!
!
!
multilink bundle-name authenticated
!
!
chat-script lte "" "AT!CALL" TIMEOUT 20 "OK"
chat-script movistar "" "AT+CGDCONT=1,"IP","web.tmovil.cl"" TIMEOUT 30 "OK"
!
!
!
!
!
license udi pid C899G-LTE-LA-K9 sn FJC2225L1B7
!
!
!
redundancy
!
!
!
!
!
controller Cellular 0
lte modem link-recovery rssi onset-threshold -110
lte modem link-recovery monitor-timer 20
lte modem link-recovery wait-timer 10
lte modem link-recovery debounce-count 6
!
!
!
!
!
!
!
!
!
!
!
interface Cellular0
ip address negotiated
ip nat outside
ip virtual-reassembly in
encapsulation slip
dialer in-band
dialer string lte
dialer string movistar
!
interface Cellular1
no ip address
encapsulation slip
!
interface GigabitEthernet0
no ip address
!
interface GigabitEthernet1
no ip address
!
interface GigabitEthernet2
no ip address
!
interface GigabitEthernet3
no ip address
!
interface GigabitEthernet4
no ip address
!
interface GigabitEthernet5
no ip address
!
interface GigabitEthernet6
no ip address
!
interface GigabitEthernet7
no ip address
!
interface GigabitEthernet8
no ip address
shutdown
duplex auto
speed auto
!
interface GigabitEthernet9
no ip address
shutdown
duplex auto
speed auto
!
interface Vlan1
ip address 192.168.1.1 255.255.255.0
ip nat inside
ip virtual-reassembly in
!
interface Dialer1
mtu 1428
ip address negotiated
ip nat outside
ip virtual-reassembly in
encapsulation ppp
dialer pool 1
!
ip forward-protocol nd
no ip http server
no ip http secure-server
!
!
ip nat inside source list 1 interface Dialer1 overload
!
ipv6 ioam timestamp
!
access-list 1 permit 192.168.1.0 0.0.0.255
!
control-plane
!
!
!
mgcp behavior rsip-range tgcp-only
mgcp behavior comedia-role none
mgcp behavior comedia-check-media-src disable
mgcp behavior comedia-sdp-force disable
!
mgcp profile default
!
!
!
!
!
!
vstack
!
line con 0
no modem enable
line aux 0
line 2
no activation-character
no exec
transport preferred none
stopbits 1
line 3
script dialer movistar
no exec
line 8
no exec
line vty 0 4
login
transport input none
!
scheduler allocate 20000 1000
!
end

Router#

[Enes Simnica]

hello @diegonchoo Ur config is mostly there... so for ur Cisco 899G-LTE router with Movistar Chile SIM, follow these steps to establish LTE connectivity. Ur existing configuration is close, but needs a few adjustments for reliable operation. Here's what to do:

if u have time u should verify some stuff first/....

Router# show cellular 0 all
Check for "Modem State: Online" and "SIM State: OK"

Confirm APN settings match Movistar's requirements:
Router# show run | include web.tmovil.cl
******

Update your cellular interface config:
Router(config)# interface Cellular0
Router(config-if)# no shutdown
Router(config-if)# dialer pool-member 1
Router(config-if)# exit

Verify dialer interface:
Router(config)# interface Dialer1
Router(config-if)# dialer-group 1
Router(config-if)# ppp chap hostname movistar
Router(config-if)# ppp chap password 0 movistar
Router(config-if)# exit

Add default route:
Router(config)# ip route 0.0.0.0 0.0.0.0 Dialer1

Test connection:
Router# ping 8.8.8.8 source Dialer1

If it fails, troubleshoot with:
Router# debug chat
Router# debug dialer
Router# show cellular 0 connection

Key things to verify:

• SIM is properly activated with Movistar
• Sufficient signal strength (use "show cellular 0 radio")
• APN is exactly "web.tmovil.cl"
• No IP conflicts on your LAN (VLAN1 uses 192.168.1.1)
• NAT is properly configured (you already have ip nat inside source list)

So ur config was missing the dialer-group and PPP authentication, which are essential for establishing the connection. If u still encounter issues after applying these changes, please share the output of "show cellular 0 all" for further troubleshooting...

hope the answer is not that long HHAHAHA, hopE it helps and ping me if u have more question, also check this link: 

• https://www.cisco.com/c/en/us/td/docs/routers/wireless-wan/Cisco-Catalyst-Cellular-Gateways/cisco-cellular-gateways-command-reference-guide/m-show_commands.html
• https://www.cavliwireless.com/blog/nerdiest-of-things/an-introduction-to-cellular-at-commands

-Enes

[diegonchoo]

I applied the configuration you suggested, but unfortunately it’s not working. Do you see anything that might be wrong, my friend?

Router#show cellular 0 all
Hardware Information
====================
Modem Firmware Version = SWI9X30C_02.20.03.00
Modem Firmware built = 2016/06/30 10:54:05
Hardware Version = 1.0
Device Model ID: MC7430
International Mobile Subscriber Identity (IMSI) = 730029944369199
International Mobile Equipment Identity (IMEI) = 355812070177794
Integrated Circuit Card ID (ICCID) = 8956028200141479393
Mobile Subscriber Integrated Services
Digital Network-Number (MSISDN) =
Modem Status = Online
Current Modem Temperature = 27 deg C
PRI SKU ID = 1102644, PRI version = 002.017_001, Carrier = Generic
OEM PRI version = 000.010

Profile Information
====================

Profile 1 = INACTIVE* **
--------
PDP Type = IPv4
Access Point Name (APN) = web.movistar.cl
Authentication = None

* - Default profile
** - LTE attach profile

Configured default profile for active SIM 1 is profile 1.

Data Connection Information
===========================
Profile 1, Packet Session Status = INACTIVE
Profile 2, Packet Session Status = INACTIVE
Profile 3, Packet Session Status = INACTIVE
Profile 4, Packet Session Status = INACTIVE
Profile 5, Packet Session Status = INACTIVE
Profile 6, Packet Session Status = INACTIVE
Profile 7, Packet Session Status = INACTIVE
Profile 8, Packet Session Status = INACTIVE
Profile 9, Packet Session Status = INACTIVE
Profile 10, Packet Session Status = INACTIVE
Profile 11, Packet Session Status = INACTIVE
Profile 12, Packet Session Status = INACTIVE
Profile 13, Packet Session Status = INACTIVE
Profile 14, Packet Session Status = INACTIVE
Profile 15, Packet Session Status = INACTIVE
Profile 16, Packet Session Status = INACTIVE

Network Information
===================
Current System Time = Wed Jul 30 20:3:52 2025
Current Service Status = Normal
Current Service = Packet switched
Current Roaming Status = Home
Network Selection Mode = Automatic
Network = Movistar
Mobile Country Code (MCC) = 730
Mobile Network Code (MNC) = 2
Packet switch domain(PS) state = Attached
LTE Carrier Aggregation state = Deconfigured
Location Area Code (LAC) = 26011
Cell ID = 2435584
Network MTU is not Available

Radio Information
=================
Radio power mode = online
Channel Number = 4358
Current Band = WCDMA 850
Current RSSI(RSCP) = -68 dBm
Current ECIO = -6 dBm
Primary Scrambling Code = 0x109
Number of nearby cells = 2
Idx PSC (Primary Scrambling Code)
-------------------------------------
1 184
2 268
Radio Access Technology(RAT) Preference = AUTO
Radio Access Technology(RAT) Selected = UMTS

Modem Security Information
==========================
Active SIM = 1
SIM switchover attempts = 0
Card Holder Verification (CHV1) = Disabled
SIM Status = OK
SIM User Operation Required = None
Number of CHV1 Retries remaining = 3

GPS Information
==========================

GPS Info
-------------
GPS Feature: enabled
GPS Port Selected: Dedicated GPS port
GPS Status: GPS mode or nmea not enabled
GPS auto tracking status: disabled (Mode is not set)
GPS auto tracking config: disabled
GPS Mode Configured: not configured/unknown

SMS Information
===============
Incoming Message Information
----------------------------
SMS stored in modem = 0
SMS archived since booting up = 0
Total SMS deleted since booting up = 0
Storage records allocated = 25
Storage records used = 0
Number of callbacks triggered by SMS = 0
Number of successful archive since booting up = 0
Number of failed archive since booting up = 0

Outgoing Message Information
----------------------------
Total SMS sent successfully = 0
Total SMS send failure = 0
Number of outgoing SMS pending = 0
Number of successful archive since booting up = 0
Number of failed archive since booting up = 0
Last Outgoing SMS Status = SUCCESS
Copy-to-SIM Status = 0x0
Send-to-Network Status = 0x0
Report-Outgoing-Message-Number:
Reference Number = 0
Result Code = 0x0
Diag Code = 0x0 0x0 0x0 0x0 0x0

SMS Archive URL =

Error Information
=================

This command is not supported on this platform.

Modem Crashdump Information
===========================
Chassis Model Name is C899G-LTE-LA-K9
Platform is MC7430 based
Modem crashdump logging: off
Router#