ght Time -360 10 Canada Central Standard Time -360 11 SA Pacific Standard Time -300 12 Eastern Standard/Daylight Time -300 13 US Eastern Standard Time -300 I'm in the US Eastern time zone, SO I must use 13: 21-PBX(config-telephony)#time-zone 13 Make sure your router has a valid NTP source or three (see Chap- ter 38 for more information). Time is very important to a phone system, since it's displayed on every phone and is used in reporting. You might be surprised at how many people use their phones as a clock. This router has an AIM-CUE card that supplies voicemail using CUE. The configura- tion of CUE is outside the scope of this book, but we must configure the PBX with the extension to dial to reach the voicemail system. I've configured CUE to answer to ex- tension 222: R1-PBX(config-telephony)#voicemail 222 Chapter 30: VolP Since this is a PBX, when you pick up a handset, you get a PBX dial tone. To dial a number outside the PBX's dial plan, you must select a number that will get you an outside line. Traditionally, this number has been 9, but many offices prefer 8 to avoid confusion when people need to dial 911. I prefer 9, SO that's what I'm going to use. We'll see how to prevent 911 dial confusion later in this chapter: 1-PBX(config-telephony)#secondary-dialtone Finally, we must configure how the system handles transfers, which occur when you forward a call from one extension to another. There are four transfer types supported in CME: blind, full-blind, full-consult, and local-consult. These can be distilled down to two major types: blind and consult. Blind transfer Imagine that you've answered a call, but it's for Frank Doodleputz in Accounting. You need to get the call to Frank, but you dislike talking to him, since he talks continuously about his adventures playing tuba with his polka band. If you forward the call to Frank's extension but don't call him to warn him about it, that's a blind transfer. You may also hear this referred to as an unannounced, unattended, or cold transfer. Consult transfer Imagine