This page lists 9 ATAs that support pulse dialing: https://www.classicrotaryphon...

This page lists 9 ATAs that support pulse dialing:

https://www.classicrotaryphones.com/forum/index.php?topic=20...

  - Minitar MVA11A
  - Grandstream HT502
  - Grandstream GXW-4008
  - Primus Lingo iAN-02EX
  - Innomedia MTA6328-2Re
  - Motorola VT-1005
  - Audio Codes MP-114 FXO
  - Digium IAXy s101i
  - Linksys RTP300 (maybe)