Are more CODEC's available now?

[VOIPoTim]

We don't officially support other codecs.

I'd be surprised if your phone doesn't support it...they may just call it something different. What are the other options listed?

[Goldstrom]

You're absolutely right. I looked at the administrator's manual and it says:
• G722
• PCMA (G.711 A-law)
• G726-32 (G.726 [32k])
• G729A
• PCMU (G.711 μ-law)

So it must be the PCMU setting!

Thanks! Hope this info helps someone else too.