[OpenSER-Users] Group and directed call pickup

[Zahid Mehmood]

Hi All,
    I am working on implementing group/directed call pickup and it is  
my understanding that this requires dialog state information.   Can  
someone describe the best approach to implement this when using  
multiple proxies? We have multiple proxies that replicate  
registration information to each other.

Is there a way to share the dialog information among multiple  
proxies? or should all calls be routed through one proxy?

Also, does this require presence server?

Thanks in advance.

--
Zahid