SIP to CS1K NRS

IP Office Settings:

Use LAN1 (LAN) for programming and maintenance, and LAN2 (WAN) for SIP traffic.
If the system has IP phones, connect them to a switch on the LAN2 (WAN) interface.

IP Office	CS1K
LAN1 (LAN)  →	ELAN
LAN2 (WAN) →	TLAN

Connect LAN2 (WAN) to the CS1K TLAN network, an ELAN connection is optional.

System:

• System ➤ LAN2 ➤ Lan Settings: Enter the IP Office endpoint IP address/mask/gateway.
  - Ensure Enable NAT is unchecked!
• System ➤ LAN2 ➤ VoIP: Check SIP Trunks Enable, all other settings are default.

SIP Lines:

• SIP Line ➤ ITSP Domain Name: Enter the SIP domain name used in the NRS.
• Transport ➤ ITSP Proxy Address: this entry depends on the CS1K release!
  - when the CS1K is at Rls 5.5 and below: enter the CS1K Node IP address.
  - when the CS1K is at Rls 7.0 and above: enter the Primary NRS IP address.
• Transport ➤ Layer 4 Protocol: Select UDP from the drop down.
• SIP URI ➤ Edit Channel: Enter asterisks (*) as shown, Incoming and Outgoing Group ID's, number of SIP licenses.

Routing:

• Short Codes: Add as required, using the format: number"@CS1K_NODE_IP" (note the quotes).
• Incoming Call Route ➤ Line Group ID ➤ Destinations: Enter a full-stop (.) wildcard to ring dialed extension.

Note: Short Codes always use the NODE_IP, but the SIP Line ITSP Proxy Address = Primary_NRS_IP with linux (7.5), or CS1K_NODE_IP with VxWorks (5.5) signalling servers.

IP Route:

• Add route for LAN2: 0.0.0.0 255.255.255.255 (which covers everything on LAN2) ➤ Gateway IP Address.
  Forgetting this will prevent outgoing calls.

IP Office NRS Endpoint:

1Add an IP Office as an NRS endpoint:

1. Choose Endpoints from the NRS left menu pane, and click the 'Standby Database'.
2. At 'Search for Endpoints', select Domain / upd / cdp from the drop down boxes.
3. The ADD should now be active, so click it.
4. Enter the endpoint details (at pointers below), and SAVE.
   - The 'Static endpoint address' is the IP Office WAN port IP address.
   - 'Bandwidth Zone' is the CS1K ZBRN=VTRK (virtual trunk) zone.

Scroll image to see all settings:

2Add a routing entry:

1. Choose Routes from the NRS left menu pane, and click the 'Standby Database'.
2. At 'Search for Routing Entries', select Domain / upd / cdp from the drop down boxes.
3. Select the 'Endpoint Name' added above to activate the ADD button, and click it.
4. The DN type is CDP, DN prefix is the IP-Office DN range, and Route cost is 1,
5. SAVE to add the entry.

3Make the changes active:

1. Choose Database from the NRS left menu pane.
2. Click Cutover, followed by Commit.

The NRS programming is complete.

CS1K steering Code:

Build a Distance Steering Code in LD 87.

REQ  new
CUST 0
FEAT cdp
TYPE dsc
DSC  22               ← IP Office DN range, with FLEN 4 this is 22XX
FLEN 4
DSP  
RRPA 
RLI  19               ← This is the CS1K 'virtual trunk' (SIP) route
NPA  
NXX  
DSC

Now CS1K calls to 22XX will query the NRS, which determines the SIP Endpoint address.

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