I use a Telos Zephyr ISDN with two phone lines. The numbers are:

Line one: 505 983 7624
Line two: 505 983 7638

ISDN setting are usually L2mono128/L2 - 48bps 64hz. Will change when requested.
ISDN/ADR settings are usually L3 stereo/L3 - 48bps 64hz. Will change when requested. 

ISDN provider is edNet. 415-263-7490 (IF BRIDGE IS NEEDED)
Microphones - (1)Neumann U-87, (1)Sennheiser ew 100 LAV, (1)Sennheiser MKH 416 P48 Boom
Bookings are for a one hour minimum, and all scheduled & confirmed session time will be invoiced.

Call main studio line 505-988-7051. I prefer to dial you at session start. Please provide name and telephone number of party. If more that one party connecting to session, please arrange for conference call and provide access code.

Skype Audio and Video connection is available. My SKYPE ID is: stepbridge studios