I cannot make a call

FOLLOW THIS: Troubleshooting failed Call

• Do not use Device 101 - it is ONLY for demo purposes
• Make sure SIP ALG is DISABLED on your routers
• Do not use Asterisk 1.4.33.1
• Call ends with message 'Login failed'
• I can call local extensions but not PSTN numbers
• I can make calls with SIP but not with H323 devices
• I cannot make calls from different connections from same IP
• Provider drops the call
• Device with IP Authentication is asked for Username/Password

See also

• I have a problem with Calls
• SIP Error Codes