phone unprovisioned 7940

[nasiif]

i recently reset my cisco ip phone 7940 to factory setting due to some functionality issues which i recently have been using via asteriks pbx server, thereafter, when i try again to set the sip and network settings accepts but on calling it shows calling (out IVN) message ...who can help me go about it

[George Sotiropoulos]

Hello,

Maybe you should try to read the following 2 to get some better understanding for troubleshooting:

https://www.voip-info.org/asterisk-phone-cisco-79xx/

https://www.voicenet.eu/wp-content/uploads/2016/06/Asterisk-With-Cisco-IP-Phones.pdf

G