asterisk users - May 2009 - Fax Machines across carrier SIP trunk? General recommendation?

Customer has a Verizon Business SIP trunk, I'm still used to PRI T1
myself for local service.  The fax machines are having some issues (I
can use analog phone to call out fine)  and I'm checking on modem
passthrough with Verizon, but wonder if any else is using Verizon
Business for SIP trunk and what your faxing milage was? Did they support
G711 and modem-passthough, etc? Also checking QoS, etc.

 




-----------------------------------------
Disclaimer:

This e-mail communication and any attachments may contain
confidential and privileged information and is for use by the
designated addressee(s) named above only.  If you are not the
intended addressee, you are hereby notified that you have received
this communication in error and that any use or reproduction of
this email or its contents is strictly prohibited and may be
unlawful.  If you have received this communication in error, please
notify us immediately by replying to this message and deleting it
from your computer. Thank you.
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
http://lists.digium.com/pipermail/asterisk-users/attachments/20090526/8406ffbc/attachment.htm

Modem and/or analog passthrough over SIP trunk, not on a LAN?  I 
wouldn't bother - it doesn't even work very well on an uncontended LAN 
due to excessive jitter, let alone over the Internet or semi-private 
Layer 2 cloud product.

T.38 or bust.  The other's fax mileage is measured in gallons per mile, 
not miles per gallon.

Jason Aarons (US) wrote:
> Customer has a Verizon Business SIP trunk, I?m still used to PRI T1 
> myself for local service.  The fax machines are having some issues (I 
> can use analog phone to call out fine)  and I?m checking on modem 
> passthrough with Verizon, but wonder if any else is using Verizon 
> Business for SIP trunk and what your faxing milage was? Did they support 
> G711 and modem-passthough, etc? Also checking QoS, etc.
> 
>  
> 
> ------------------------------------------------------------------------
> 
> * Disclaimer: This e-mail communication and any attachments may contain 
> confidential and privileged information and is for use by the designated 
> addressee(s) named above only. If you are not the intended addressee, 
> you are hereby notified that you have received this communication in 
> error and that any use or reproduction of this email or its contents is 
> strictly prohibited and may be unlawful. If you have received this 
> communication in error, please notify us immediately by replying to this 
> message and deleting it from your computer. Thank you. *
> 
> 
> ------------------------------------------------------------------------
> 
> _______________________________________________
> -- Bandwidth and Colocation Provided by http://www.api-digital.com --
> 
> asterisk-users mailing list
> To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-users

-- 
Alex Balashov
Evariste Systems
Web    : http://www.evaristesys.com/
Tel    : (+1) (678) 954-0670
Direct : (+1) (678) 954-0671
Mobile : (+1) (678) 237-1775