02-15-2024 09:08 AM
Hello,
I try to setup a dial-in server with 3825 router and NM-8AM-V2 card. but I am facing some issues. The purpose is to allow incoming connexions from various devices who still use analog modem connexion. These devices are directly connected to RJ11 plugs of the NM-8AM-V card. No phone line between router and connected devices.
I have setup Group-Async1 to answer call (modem inout) but to make it works I must use a line simulator between devices and router. With this setup, 3825 can answer call at speed of 33k. Without the line simulator the 3825 did not detect incoming call. Plus some devices need a phone tone to start the call, without phone tone those modem refuse to establish connexion. Some questions :
- how to ensure that the NM-8AM-V2 answer call with direct modem connexion ? (the phone cable of calling modem is directly connected to NM-8AM-V2 card) ?
- is the NM-8AM-V2 can generate phone tone ?
- how to enable v90 ?
Thanks for your help
Here the config :
hostname SIMM-56k
aaa new-model
aaa authentication login default local
aaa authentication ppp default local
enable password xxxx
username xxxx password 0 xxxxx
modem country smart_acf usa
ip subnet-zero
interface GigabitEthernet0/0
ip address 192.168.0.79 255.255.255.0
no shutdown
no ip directed-broadcast
interface GigabitEthernet0/1
ip address dhcp
no shutdown
no ip directed-broadcast
interface Group-Async1
ip unnumbered GigabitEthernet0/0
no ip directed-broadcast
encapsulation ppp
async mode interactive
peer default ip address pool default
ppp authentication chap
group-range 130 137
ip local pool default 10.1.1.1 10.1.1.8
ip classless
no ip http server
line con 0
transport input
line 130 137
autoselect during-login
autoselect ppp
modem InOut
autocommand ppp
stopbits 1
flowcontrol hardware
line aux 0
line vty 0 4
password xxxxx
no scheduler allocate
end
05-21-2024 07:09 AM
@DrWily wrote:Hello,
I try to setup a dial-in server with 3825 router and NM-8AM-V2 card. but I am facing some issues. The purpose is to allow incoming connexions from various devices who still use analog modem connexion. These devices are directly connected to RJ11 plugs of the NM-8AM-V card. No phone line between router and connected devices.
I have setup Group-Async1 to answer call (modem inout) but to make it works I must use a line simulator between devices and router. With this setup, 3825 can answer call at speed of 33k. Without the line simulator the 3825 did not detect incoming call. Plus some devices need a phone tone to start the call, without phone tone those modem refuse to establish connexion. Some questions :
- how to ensure that the NM-8AM-V2 answer call with direct modem connexion ? (the phone cable of calling modem is directly connected to NM-8AM-V2 card) ?
- is the NM-8AM-V2 can generate phone tone ?
- how to enable v90 ?
Thanks for your help
Here the config :
Spoilerhostname SIMM-56k
aaa new-model
aaa authentication login default local
aaa authentication ppp default local
enable password xxxx
username xxxx password 0 xxxxx
modem country smart_acf usaip subnet-zero
interface GigabitEthernet0/0
ip address 192.168.0.79 255.255.255.0
no shutdown
no ip directed-broadcastinterface GigabitEthernet0/1
ip address dhcp
no shutdown
no ip directed-broadcastinterface Group-Async1
ip unnumbered GigabitEthernet0/0
no ip directed-broadcast
encapsulation ppp
async mode interactive
peer default ip address pool default
ppp authentication chap
group-range 130 137ip local pool default 10.1.1.1 10.1.1.8
ip classless
no ip http serverline con 0
transport inputline 130 137
autoselect during-login
autoselect ppp
modem InOut
autocommand ppp
stopbits 1
flowcontrol hardwareline aux 0
line vty 0 4
password xxxxxno scheduler allocate
end
To address these challenges, configuring the Group-Async1 interface correctly is crucial, ensuring it accepts incoming modem calls and is set up with the appropriate signaling protocol. However, it's important to note that the NM-8AM-V2 card lacks the capability to generate phone tones, requiring external devices for this function. Additionally, enabling V.90 support involves configuring modem signaling parameters accurately. Through proper configuration and troubleshooting, DrWily can establish a functional dial-in server to accommodate various analog modem connections effectively
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