Chapter 11. Dial Plan61200305L1-1 ATLAS 550 User Manual 11-23PORTS AVAILABLE Indicates which of the two ports of the ATLAS 550 have already beendefined either in another switched endpoint (indicated by S) or in a D EDI -CATED M AP (indicated by N). This field is read-only.NUMBER OF PORTS Defines to the ATLAS 550 how many of the ports could be used to answercalls to the number(s) defined in the I NCOMING A CCEPT C ALL L IST. You canenter numbers 1 or 2. The ports are contiguous beginning with the portnumber selected and the number of ports.Example:If the port selected (as a part of the S LOT/PORT selection) is 2, and the num-ber of ports selected here was 1, then only port 2 would be enabled toreceive calls to the numbers listed under the INCOMING C ALL A CCEPT L IST.NUMBER TO DIAL Indicates the number to be dialed.CALL TYPE Indicates whether the call will be 64K or 56K data rate: 56K is intended foruse in applications where interoperability with S WITCHED 56 service is de-sired. 64 K is the default call type.DIAL CALL AS Indicates how the call will be handled over the network: DIGITAL, VOICE, or AUDIO.D IGITAL Requests a 56 kbps data circuit that is rate-adapted to 56 kbps or an unre-stricted 64 kbps data circuit.VOICE Requests a Mu-law/A-law speech circuit as the bearer capability for outgo-ing calls. Use VOICE with an ISDN line configured for voice service. In someareas, voice service costs less than data service. A VOICE call type does notguarantee an end-to-end digital connection with some local and long dis-tance carriers.AUDIO Requests a 3.1 kHz audio circuit as the bearer capability for outgoing calls.Use AUDIO with an ISDN line configured for voice service. In some areasaudio service is less expensive than data service. An AUDIO call type guar-antees a digital end-to-end ISDN connection.S OURCE ID Simplifies the creation of a D IAL P LAN in applications where the criterion forswitching calls to a certain endpoint is a function of which endpoint origi-nated the call.• Default value = 0. The default ID for all endpoints is 0 and for all acceptnumbers is 0. With default values, all calls are routed based only on thedialed number.• Multiple endpoints can have the same Source ID.• When creating the Call Accept list, specify a Source ID(s) as well as a di-aled number or range of dialed numbers to accept.Example:An application requires that all calls that originate from Port 1 of theATLAS 550 in Slot 1 be switched to Port 2 of that same module. Assign aunique Source ID (e.g. 7) to Port 1 of the module, and then configure Port 2to only accept calls from that unique Source ID (7).