[tx_jaycee]

Originally Posted by Mutiny32

And if anyone wants to know what SMV is, it stands for Selectable Mode Vocoder, and it is a newer voice codec than EVRC, which is what carriers use currently. It isn't as new as the 4GV standard EVRC-B or EVRC-WB, but it has noticeably better call quality than EVRC while being more bandwidth efficient. EVRC-B is even more bandwidth efficient with higher call quality than EVRC, but in most opinions isn't as good as SMV. EVRC-WB (WB stands for WideBand) is the sister codec to EVRC-B and is a 4GV standard, but I haven't tested it much and the only way to enable it is through QPST. I haven't had much luck with the TP and EVRC-WB and Qualcomm won't say exactly what MSM chipsets support it. Let's just say I need to test EVRC-WB more to say it is useable. If it is, then it would be the preferrable vocoder to use.

To enable SMV, you need to punch in ##PST#, select edit, put in your MSL, and select CDMA settings under the "View info" menu. Set EVRC Enabled to "Disable," set Home Page to "SMV," and set Home Orig to "SMV." Roam Orig is optional and you can use EVRC or SMV, but to avoid any problems when roaming, I'd advise keeping it set to Voice 13K.

Does anyone know if these correspond to specific registry settings? I'm interested in incorporating this into UC.

Thanks in advance. Great info!!