Invalid When Picking the other phone

[cjchuramoe13]

Hi All,

Just want to check if you have encountered this issue. See below call flow:

1. When a customer will call the specific trunk of the client both phone rings with extension numbers 206 and 208.
2. The client will answer the phone with 206 EXT. If there is another call while engage on a call using 206 EXT, the 208 EXT will ring. When the client puts the call on hold of 206 EXT, so that she can pick up the call of 208. The phone with 208 EXT will just continue ringing and it will display INVALID on the phone screen.

It just happen recently and they have not encountered this issue before. Appreciate your inputs.

Thanks,
cj

 

[leejor]

I assume these sets are in a ring group?
Are the two extension appearances on individual sets?
What brand/model of phones are they?
Does this also happen if the other extension is engaged when another call comes in?
Are the sets local to the server, behind an SBC, or using STUN?