AceJavelin,
What's interesting is our incoming lines are SIP (from what I understand) currently come across a DS1 (T1), are run through an Adtran to interface with the Mitel 250 Office via a T1/Pri card. Bottom line is from what I understand, we have SIP lines, that terminate at the Mitel 250 Office as a T1/PRI. Seems like we should be able to send out the incoming call's TN when transfering a call. I suspect the T1/PRI is probably the problem. I am looking at a bit of redundancy (T1/PRI was down for six hours last week. Carrier replaced a card and it was up. Six hours to replace a card?) and having some trunks available at a different physical location, where there is another MiVoice Office. We could accept SIP or T1/PRI at that location. The trunks at the second location would be shared with the current location which has the T1/PRI.
We could switch to SIP for both locations, and do away with the T1/PRI. The downside is licensing costs. I don't see management saying go ahead and throw away the T1/PRI and buy SIP licenses. Honestly, the thought of going all SIP isn't the most comforting for me. I am not sure SIP is quite up to the easy configuration that T1/PRI is.
What's frustrating is I can't send out the caller ID of a incoming call, yet the scammers are able to do so. Yes, the freaking scammers/caller ID spoofers have been bugging me quite a bit in the last week on my cell and the T1/PRI trunks. I would really like to see the caller ID spoofers gone.
Jeff