An approximate mapping between the IPA phone set to the Iban (http://www.openslr.org/24/) phone set from Prof. Mark Hasegawa-Johnson (https://github.com/jhasegaw) can be found here. Please reference the following work for more details:
He, D., Lim, B. P., Yang, X., Hasegawa-Johnson, M., & Chen, D. (2018). Improved ASR for Under-Resourced Languages Through Multi-Task Learning with Acoustic Landmarks. arXiv preprint arXiv:1805.05574.