10.1 Troubleshooting
For the most frequently asked questions refer to faq.2n.cz.
- A separate cable is recommended for each audio unit in a high-interference environment
- DTMF transmission problem on GSM module > change parameter 710 to 1
- SIP errors
- SIP_ERR_REGISTER_SERVER_ADDR_RESOLVE = 10 (IP address could not be obtained)
- SIP_ERR_REGISTER = 11 (general error)
- SIP_ERR_REGISTER_FORBIDDEN_ACCESS = 12
- SIP_ERR_REGISTER_RCVTIMEOUT = 13
- SIP_ERR_INVITE_ADDR_RESOLVE = 20
- SIP_ERR_INVITE = 21
- SIP_ERR_INVITE_USER_NOTFOUND = 22 (SIP 404 – User Not Found)
- SIP_ERR_INVITE_FORBIDDEN_ACCESS = 23
- SIP_ERR_INVITE_RCVTIMEOUT = 24
- In the case of SIP_ERR_INVITE_RCVTIMEOUT, information is added defining the part of the process in which the error happened
/** SIP register states */
SIPCON_STATE_UNREGISTERED = 0,
SIPCON_STATE_REGISTER_AFTER_IPADDR_RESOLVED,
SIPCON_STATE_REGISTER,
SIPCON_STATE_REGISTERING,
SIPCON_STATE_REGISTERED,
SIPCON_STATE_UNREGISTER,
SIPCON_STATE_UNREGISTERING
/** SIP invite states */
SIPCON_STATE_NOINVITED = 100,
SIPCON_STATE_INVITE_AFTER_IPADDR_RESOLVED,
SIPCON_STATE_INVITE,
SIPCON_STATE_INVITING,
SIPCON_STATE_INVPENDING,
SIPCON_STATE_RINGING,
SIPCON_STATE_INVITED,
SIPCON_STATE_HANGUP,
SIPCON_STATE_HANGUPING,
SIPCON_STATE_DECLINE,
SIPCON_STATE_DECLINING,
SIPCON_STATE_INCOMING_INVITE,
SIPCON_STATE_INCOMING_ACCEPT,
SIPCON_STATE_INCOMING_ACCEPTING,
SIPCON_STATE_INCOMING_DECLINE,
SIPCON_STATE_REINVITE,
SIPCON_STATE_REINVITENING,
SIPCON_STATE_REINVPENDING