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This topic uses an example to describe the user number and interworking data plan. In this example, the UScale X1981 functions as the convergent node to implement voice communication requirements between local nodes.

Service Requirements

ϒ⁄Users at different local nodes can call each other using "area code+short numbers".

ϒ⁄Users within a local node can call each other using short numbers or "area code+short numbers".

§Dialing area code+short number: The area code here is the local area code, and the calling method is the same as that used for calling users at the other nodes.

§Dialing a short number: Users within a local node can call each other by directly dialing the short numbers.

Number Plan

NE	Number Segment	Remarks
Local node 1	01080000-01089999	User numbers are in format of "area code+short number", where the area code is 010 and the short number is a 5-digit number starting with 8.
Local node 2	02170000-02179999	User numbers are in format of "area code+short number", where the area code is 021 and the short number is a 5-digit number starting with 7.
Local node 3	0256000-0256999	User numbers are in format of "area code+short number", where the area code is 025 and the short number is a 4-digit number starting with 6.
Local node 4	05718000-05718999	User numbers are in format of "area code+short number", where the area code is 0571 and the short number is a 4-digit number starting with 8.

Number Change Plan

NE	Number Change Index	Type	Start Position	Inserted Number	Remarks
Local node 1	0	Insert number	0	010	The system inserts the local area code before the called short number to allow placing intra-node calls using short numbers.
Local node 2	0	Insert number	0	021
Local node 3	0	Insert number	0	025
Local node 4	0	Insert number	0	0571

Prefix Plan

NE	Prefix	Call Attribute	Office Route Selection Code	Called Number Change	Display Calling Party's Long Number (Yes/No)	Remarks
Local node 1	8	Intra-office call	-	0	-	Used for placing calls within a local node using short numbers. When creating a prefix, associate the prefix with the called number change index that is used for inserting the local area code.
	010	Intra-office call	-	-	-	Used for placing calls within a local node using "area code+short numbers."
	021	Local call	1	-	No	Used for routing calls to the convergent node. For outgoing calls to the PSTN, 900, 90, and 9 are planned as the international toll call prefix, national toll call prefix, and local call prefix.
	025	Local call	1	-	No
	0571	Local call	1	-	No
Local node 2	7	Intra-office call	-	0	-	Used for placing calls within a local node using short numbers. When creating a prefix, associate the prefix with the called number change index that is used for inserting the local area code.
	021	Intra-office call	-	-	-	Used for placing calls within a local node using "area code+short numbers."
	010	Local call	1	-	No	Used for routing calls to the convergent node. For outgoing calls to the PSTN, 900, 90, and 9 are planned as the international toll call prefix, national toll call prefix, and local call prefix.
	025	Local call	1	-	No
	0571	Local call	1	-	No
Local node 3	6	Intra-office call	-	0	-	Used for placing calls within a local node using short numbers. When creating a prefix, associate the prefix with the called number change index that is used for inserting the local area code.
	025	Intra-office call	-	-	-	Used for placing calls within a local node using "area code+short numbers."
	010	Local call	1	-	No	Used for routing calls to the convergent node. For outgoing calls to the PSTN, 900, 90, and 9 are planned as the international toll call prefix, national toll call prefix, and local call prefix.
	021	Local call	1	-	No
	0571	Local call	1	-	No
Local node 4	8	Intra-office call	-	0	-	Used for placing calls within a local node using short numbers. When creating a prefix, associate the prefix with the called number change index that is used for inserting the local area code.
	0571	Intra-office call	-	-	-	Used for placing calls within a local node using "area code+short numbers."
	010	Local call	1	-	No	Used for routing calls to the convergent node. For outgoing calls to the PSTN, 900, 90, and 9 are planned as the international toll call prefix, national toll call prefix, and local call prefix.
	021	Local call	1	-	No
	025	Local call	1	-	No
Convergent node	010	Local call	1	-	No	Used for routing calls to local node 1.
	021	Local call	2	-	No	Used for routing calls to local node 2.
	025	Local call	3	-	No	Used for routing calls to local node 3.
	0571	Local call	4	-	No	Used for routing calls to local node 4.
	900	International toll call	0	-	-	Planning and configuring toll call prefixes is to meet the following system requirement: The toll call prefixes must be configured before you configure the local call prefix. These toll call prefixes are not practically useful to the convergent node.
	90	National toll call	0	-	-

Trunk Plan

NE	Trunk Type	Office Route Number	Peer Device	Destination IP Address	Destination Port
Local node 1	SIP	1	Convergent node	10.10.10.3	5060
Local node 2	SIP	1	Convergent node	10.10.10.3	5060
Local node 3	SIP	1	Convergent node	10.10.10.3	5060
Local node 4	SIP	1	Convergent node	10.10.10.3	5060
Convergent node	SIP	1	Local node 1	10.10.10.2	5060
Convergent node	SIP	2	Local node 2	192.168.1.2	5060
Convergent node	SIP	3	Local node 3	172.16.1.2	5060
Convergent node	SIP	4	Local node 4	10.175.1.2	5060

Configuration Process

Figure 1 illustrates the configuration process based on the preceding requirements and data plan.

Figure 1 Process for configuring node interconnection

cmsg_u1900_images_f_ipt_cmsg_00051_01

User, number change, and intra-office call prefix configurations belong to the verification of basic voice calling and therefore is not covered in this process.

Parent Topic: Multi-Node Network Scenario (Convergent)

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