I'm working on the UC520 im my lab and what I'm trying to do is to fix the FXO disconnect problem, I know that it's a popular problem and I already checked the posts about it including the Cisco's document (Understanding FXO Disconnect problem). So here is my situation.
what I'm tryin to do is the make the IP phone hang up by itself when the other party end the call and the disconnect tone heared, (For Example: if you were talking on the speaker then no need to press the button to end the call, the speacker will be closed by it self. and the same if you were using the softphone).
here are some scenarios with my cuurect configuration:
let's say that the person who is calling from his mobile is person (A), and the one on his desk with the Cisco IP phone is Person (B)
- When person (A) call and dial Person(B)'s Ext and then hang up (before person (B) pick up his phone), the ip phone does notkeep ringing and it hangs up as well. :)
- When person (A) call and dial Person(B)'s Ext and person (B) pick up his phone then they talk for a while after that person (A) hang up his mobile , the ip phone automatically give a busy tone and hang up (the FXO port as well).:)
- WhenPerson (B) call Person (A) on his mobile and then they talk for a while , after that Person (A) hang up his mobile, and let's say that Person (B) forgot to press the speaker button or he was using a softphone and he just took the headsets of. In this case the IP phone does not hang up and the FXO will still busy until the IP phone is hanged up. and this is a problem because in some cases especially with the softphones the person forget to click on the peacker button. :(
So, we have no problem when the IP phone hangs up the FXO disconnects. And we have no problem when the call comes from outside and then hangs up the FXO disconnects as well.
the only problem is happening when the call is made by the ip phone and then the other party hang up, in this case the FXO will stick off hook until the IP phone hang up.
So I know this was a LONG description but I hope that I made it cleare.
Any body has any Suggestions ?