On Sat, Nov 12, 2011 at 9:36 AM, Alex Crow <acrow@integrafin.co.uk> wrote:
I would use an analogue or PRI/BRI (depending on volume) card in the Mitel going to modems/dialogic card(s) in the Hylafax server.
You might also want to look at IAX modem instead of T38
shouldbe,
We have an engineer coming in 2 weeks to do a full software upgrade on the Mitel. This means it should then be capable of t38!
I will check before then if we need to add or upgrade the DSP.
The reason we didn't get cards is that this is a stand-in solution should the ailing fax server go down, this gives us more time to arrange a permanent solution. We don't have any spare servers at the moment that will accommodate a modem card.
The ill server (which currently answers about 6 fax numbers) and the main one (which has 16) use exactly what you say, they both have modems, in the first case 2 Multitech 8-port cards and in the second 16 external Multitech modems (unwieldy!) which connect to an Analog Service Unit on the Mitel. The ASU is I suppose what is called a "Channel Bank" in the SIP world.
Cheers
Alex
Hi Alex, Although t38 would be one solution, I would tend to go with BRI/PRI dialogic cards in a Hylafax server connected to a trunk on the 3300. Because the "modems" on the Dialogic cards can get full information (the inbound CLI and the DDI that the number was "to") over the ISDN trunk, as well as being able to set the local identifier, the tagline format and the CLI, you can have a single BRI card replacing multiple modems. as a sanitised example for setting the local identifier on received calls... cat dynamic.sh #!/bin/sh RCALLID1=$2 case "$RCALLID1" in 3001) echo "LocalIdentifier: +44.10.12343001";; # New Main Number 3299) echo "LocalIdentifier: +44.10.12343299";; # team 1 Number 5900) echo "LocalIdentifier: Please_Use_New_Number";; # Old Main Number 5911) echo "LocalIdentifier: +44.10.12355911";; # team 2 Number 5947) echo "LocalIdentifier: +44.10.12355947";; # team 3 Number 6851) echo "LocalIdentifier: +44.10.12346851";; # team 4 Number 6911) echo "LocalIdentifier: +44.10.12346911";; # team 5 Number 6947) echo "LocalIdentifier: +44.10.12346947";; # team 6 Number 6951) echo "LocalIdentifier: +44.10.12346951";; # team 7 Number 6952) echo "LocalIdentifier: +44.10.12346952";; # team 8 Number 6991) echo "LocalIdentifier: +44.10.12346991";; # team 9 Number 6998) echo "LocalIdentifier: +44.10.12346998";; # team 10 Number esac It is called by adding "DynamicConfig: /var/spool/hylafax/etc/Dynamic.sh"to /var/spool/hylafax/etc/config.ttyds01 and /var/spool/hylafax/etc/config.ttyds02 The above was a single Dialogic BRI card that replaced 12 modems and fax machines just the other side of the Thames, granted the volume at that site is "low", but you can have multiple BRI cards in a single server and there are 2 and 4 port BRI cards available as well as PRI cards if you have "high" volumes. For inbound calls you can also build in HA by having one trunk on the Mitel side with multiple ports, and each port (or set of ports) going to a different Hylafax server. Although SIP is certainly the eventual way forward, I still prefer to keep fax on "legacy" systems :-) Cheers Arne