How to configure Cisco 881 wifi?

Question

Computer networks

Good afternoon, help me, I can’t understand in any way, I previously worked with cisco many times, but there is no understanding of how to set up wifi
Maybe ios is not the right one?
Config
c881#sh run
Building configuration...
Current configuration : 2571 bytes
!
! Last configuration change at 11:31:59 UTC Mon Apr 9 2018
!
version 15.4
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname c881
!
boot-start-marker
boot-end-marker
!
!
!
no aaa new-model
memory-size iomem 10
!
crypto pki trustpoint TP-self-signed-824945985
enrollment selfsigned
subject-name cn=IOS-Self-Signed-Certificate-824945985
revocation-check none
rsakeypair TP-self-signed-824945985
!
!
crypto pki certificate chain TP-self- signed-824945985
certificate self-signed 01
30820229 30820192 A0030201 02020101 300D0609 2A864886 F70D0101 05050030
30312E30 2C060355 04031325 494F532D 53656C66 2D536967 6E65642D 43657274 69666963
6174652D 38323439 34353938 35301E17 0D313830 34303931 30353030 365A170D
32303031 30313030 30303030 5A303031 2E302C06 03550403 1325494F
532D5365 6C662D53 69676E65 642D4365 72746966 69636174 652D3832 34393435
39383530 819F300D 06092A86 4886F70D 01010105 0003818D 00308189 02818100
B58A6D6D D73850E4 947594A5 A63D6A21 F96CECC4 77CFD049 5717E001 2880F5C9 1B122B26 2AAC6C10
D7276027 C30B771A 40ACF1CA 493F0571 B39FA20E A6082A37 A1C4DBDA E48B0B08 B10C9A35
F2CB8ACC 7C5FBE03 1DF81D75 B6ED4C64 F3E13554 6A46E19F 9EE46159
8177287F BE9DC875 79A86878 F771898C 425D0342 78C6A979 02030100
01A35330 51300F06 03551D13 0101FF04 05300301 01FF301F 0603551D
23041830 168014C2 1AE0E207 CC62426E B219364B C44B3441 356FC230 1D060355
1D0E0416 0414C2C4 4B34411A E0E207CC 62426EB2 19364B35 6FC2300D 06092A86
4886F70D 01,010,505 00,038,181 0041ADCB 8B3BEC0A 47EC1ED1 6E3005A6 B3AAB876
33C1F2C1 7D470F28 DDD48AD7 9DD3E934 E731EC0F 03,305,404 7F594527 1767C441
34EEB69B 11267FBA CFEFDED5 DAF973EE 6E050DEA 96FF655C E66B283D 4029149B 19,742,932
EDBED69E 50CE9236 349F58D3 1E1C440B 8DC54E48 3843B898 81AE14AD
CEB4F24E B4BEA875 87F4345D 97 the
quit
!
!
!
!
!
!
!
!
ip cef
no ipv6 cef
!
!
cts logging verbose
license udi pid CISCO881-K9 sn FCZ1602C6MA
!
!
username admin privilege 15 secret 5 $1$bCWY$OqvNxLgKtKYk0Eaz/ACuQ0
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
interface FastEthernet0
no ip address
!
interface FastEthernet1
no ip address
!
interface FastEthernet2
no ip address
!
interface FastEthernet3
no ip address
!
interface FastEthernet4
no ip address
shutdown
duplex auto
speed auto
!
interface Vlan1
ip address 10.10.12.1 255.255.255.0
!
ip forward-protocol nd
ip http server
ip http authentication local
ip http secure-server
!
!
!
!
!
line con 0
no modem enable
line aux 0
line vty 0 4
login
transport input none
!
!
I do cisco 881
according to the official
manual c881#conf t
Enter configuration commands, one per line. End with CNTL/Z.
c881(config)#interface wlan-ap0
^
% Invalid input detected at '^' marker.
c881(config)#interface ?
Async Async interface
Auto-Template Auto-Template interface
BVI Bridge-Group Virtual Interface
CDMA-Ix CDMA Ix interface
CTunnel CTunnel interface
Dialer Dialer interface
FastEthernet FastEthernet IEEE 802.3
Group-Async Async Group interface
LongReachEthernet Long-Reach Ethernet interface
Loopback Loopback interface
Lspvif LSP virtual interface
Multilink Multilink-group interface
Null Null interface
Pseudowire Pseudowire Interface
Tunnel Tunnel interface
Vif PGM Multicast Host interface
Virtual-PPP Virtual PPP interface
Virtual-Template Virtual Template interface
Virtual-TokenRing Virtual TokenRing
Vlan Vlan IEEE 802.1q
range interface range command
vmi Virtual Multipoint Interface
c881(config)#interface
How to configure Wifi ?

Answer 1

881 are different, with and without Wi-Fi, those with Wi-Fi 881w. look in show version what kind of piece of iron you have. If I remember correctly, the 881w has an antenna in the back (I don't remember exactly if they have an 881 with a built-in antenna). In any case, show version will help you find out

Answer 2

Found this
Defines the router's console interface to the wireless device. The interface is used for communication between the router's console and the wireless device.
Always use port 0.
The following message appears:
The wlan-ap 0 interface is used for managing
the embedded AP. Please use the service-module
wlan-ap 0 session command to console into the
embedded AP.
But the service-module
wlan-ap 0 session command
fails

Answer 3

service-module wlan-ap 0 session