I'm getting ready to write a proposal to replace our existing phone systems with a sipxecs implementation. I'm envisioning purchasing 2 T1 gateways - 1 for bringing dial tone in - the other for linking to our old phone system (during the transition period) - then re-using the 2nd one as we expand out. Is this typically the recommended way to phase out the old system - or do you recommend switching everyone all at once? Bearing in mind that no one onsite has any clue how to program our aging NEC phone switch? Also - any advice/recommendations for the T1 gateway (such as - should you buy 2 separate gateways each with 1 T1 interface - or buy 1 gateway with 2 T1 interfaces). I'm not overly familiar with traditional telephone systems... Thanks, Nathaniel Watkins IT Director Garrett County Government 313 East Alder Street, Room 210 Oakland, MD 21550 Telephone: 301-334-5001 Fax: 301-334-5021 E-mail: nwatk...@garrettcounty.org<mailto:nwatk...@garrettcounty.org> You could use an AudioCodes Mediant 1000 gateway with either one dual-port T1/E1 card or two single-port T1/E1 cards. The Mediant 1000 supports T1 CAS (E&M, LoopStart, etc) for the legacy PBX system and PRI over T1 for connection to the PSTN. Dave.
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