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If you have never done a SIP trunking implementation before, you are in for a long hard road. -For starters, put the IPO directly on the internet so that you don't have to worry about NAT transit issues. You can try to put it behind a firewall or NAT later, but believe me you don't want to have...

Would highly recommend Zeacom on IP Office. Zeacom is an excellent company with a great product and outstanding personnel. Just make sure that the version of IPO firmware that is implemented is compatible with Zeacom's implementation of TAPI/WAV. Avaya constantly changes their implementation...

This is a problem with the way that Avaya has implemented SIP, not a problem with your SIP trunking provider. They do not have the appropriate expertise in the IPO group to understand the RFCs, so they have made errors in their interpretation of the SIP RFCs, one of them being how DTMF volume...

They have some big issues that they are wrestling with that continue to delay the maintenance release. I have 3 R&D escalations that remain unresolved, none of which have been listed anywhere in this forum, so pray that they put out a fully scrubbed release rather than one that is half-baked.

Yes, I tried that. I have a related question for you. How did you get FWD outbound to work with 4.0?

I am in the middle of an install with an IP500 and SIP trunking from bandwidth.com. I have run into 2 major issues that I have to resolve in 5 days in order to have a successful cut. FYI - I have had Avaya T3 SIP engineer and bandwidth.com SIP engineer involved for 2 days: - Inbound calling is...

MMMv5 has been killed by Avaya. I would look at Zeacom for a much better solution for Call Center and MMM features.

Has anyone actually tested this to see if it works? I thought that the only digital phones that supported different ring tones were the 2400 series phones because they were stored on the phone. Does this mean that IPO is now sending ring tones to the phones. Doesn't sound right to me...