[asterisk-users] Re: Grandstream HandyTone-488 with Asterisk ?

[Martin Joseph]

On 2006-11-02 07:51:15 -0800, Noc Phibee <noc at phibee.net> said:

> Hi
> 
> anyone know if i can connect a Grandstream HandyTone 488 to Asterisk ?
> 
> Actually my HandyTone 488 are connected to:
>     wan port to my lan
>     line FXO port are connected to my local analogic line
> 
> i want that when a call in by my analog line, it's sent to my asterisk
> for other voip post can answer ..
> 
> it's possible ?

It's possible, but the FXO port on that device is more of a power out 
fail over to PSTN in my opinion.

The FXO can be made to work,  but it always had issues with my setup.

1) Echo problems.  I have a long loop.
2) If calls are picked up on the first ring, they go into la la land.
3) General reliability and stability issues.

The dial plan looked like this (where 2003 is the extension of the FXO).

exten => _NXXXXXX,1,dial(SIP/@2003,60,D(ww${EXTEN}))

This dials 7 digit number through the extension 2003.

As far as incoming calls,  you need to set the HT-488 up from it's 
config. screens and and it's a regular SIP extension in asterisk.

Good Luck,
Marty

PS If you make this work great, please do let us know how!