The Digium IAXy  (http://www.digium.com/en/products/analog/s101i.php)
supports pulse, but it's IAX only (no SIP).  That's fine with me though,
since I only use ATAs with Asterisk.  It also supports CPC on both placed
and received calls (the Sipuras only do CPC on received calls).  The
Motorola ATAs do/did as well, although those were hard to find in an
unlocked state (I had a locked one and it went in the trash).
 
The Digium PCI FXO/FXS cards also support pulse dialing.  (I currently
have one for sale).
 
Motorola VT10005
The Motorola 2 port SIP ATA supports pulse dial as well
 
Nortel?
 
T1 channel banks
 
Cisco (MC)3810
The Cisco 3810 also supports pulse dialing, with up to 6 ports
 
 
Has anyone used a freshtel ATA. The reason I ask is they support SIP and 
IAX2. They also support G711, G723.1, G729A, GSM, iLBC.
They are a one port FXS and are pretty basic compared to others but I am 
interested in them as they support IAX.
The Freshtel is only available in Australia,  although a 'locked' version of 
it is sold in the UK now that Freshtel have hook up with the UK's major 
supermarket chain - Tesco http://www.tesco.com/ , who've operated their own 
'telecoms' setup http://www.tesco.com/telecoms/ for a while.  This is the 
locked version 
http://www.tesco.com/internetphone/products_internet_phone_adapter.html#top 
At #29.97 / AU$65.85 / US$58.68  not a bad price if only we could unlock 
them.  Be interested to know if you can 'unlock' them somehow?
Ian J