Recommended IOS and SIP Firmware Versions for use with Asterisk
Implementing Asterisk PBX for a small office (CCM too expensive, CME not enough features), but will be using 7940/7960 SIP phones and an 2811 Voice Gateway with a VWIC2-1MFT-T1/E1 connected to the PSTN.
My question is what software versions would be recommend for the SIP Gateway and Phones? I'm not sure to go with 12.4 or 12.4T on the Gateway, and to use 7.5 or 8.4 for the SIP Phones. Any experience with a similar setup greatly appreciated.
Re: Recommended IOS and SIP Firmware Versions for use with Aster
I'm definitely agreeing on the Phone firmware. 6.X had a call setup delay bug, 7.X has seemed fine and so has 8.X. I have a feeling they'll want to just stay with the SIP version for simplicity, but that's good to know.
It's the Gateway I'm more unsure about. In particular, I see 12.4(6)T has some features regarding SIP that isn't present in earlier version, such as SIP GW Support for Busy Out. But, I'd like to stick with the LD or GD release if possible.
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