I write my current struggle off to old phone firmware. (sip.ld 2.1.2; bootrom don't know). Set up Elastix 1.5.2 with two analog phones and four IP501s. Initially set up a three digit dial plan. Analog phones 101, 102 and the IP501s were 201-204. Parking lot was 70-78. Conference room was 151. Ran into a whole bunch of funkiness when dialing the IP501s particularly trying to transfer, both attended and blind. "Elastix" (somebody explain which of five layers) accepted two of the three digits when trying to transfer or dial from one IP501 to another. Could dial or transfer to the analog phones or conference room with out issues. WTH!! Tried expanding the parking lot to three digits but no difference. Just got done changing the IP501 extension numbers to two digits 21-24 which will be fine for my demo tomorrow. But...... Comments?