In some cases, an SS7 trunk may not have real Signal Link and therefore it needs to share Single Link from other SS7 Trunk. This instruction guide is intended to show how to use SS7 link set. In this guide, MTG2000 is taken as an example to show the configurations, and the configurations will also apply to Dinstar’s other MTG products.
Note: MTG200/MTG600/MTG1000B do not have this function.
MTG Port 0 is connected with one normal SS7 trunk, the SL (Signal link) is in TS (timeslot) 16, OPC/DPC of port 0 is 9311/9315, and the CIC is 1-31, starting from TS1.MTG Port 1 is connected with another SS7 trunk. As the port 1 does not have real independent SL, it needs to use the SL (Signal link) of port 0. The OPC/DPC of port 1 is 9299/9294, and the CIC is 1-31, starting from TS1.
Normal SS7 configuration
1. Add the SS7 Trunk
Click SS7 --> SS7 Trunk, and add a normal SS7 trunk SS7_Normal for port 0 on the page.
The OPC/DPC is 9311/9315 (which is in the format of DEC), and it needs to switch to the format of HEX first during configuration.
You can use Calculator to switch the format.
DEC 9311 -> HEX 245F
DEC 9315 -> HEX 2463
Note: If your SS7 provider support the format of 14bit (3-8-3), you can set SS7 trunk directly as follows:
2. Add the SS7 MTP Link
Click SS7 --> SS7 MTP Link, and add a normal SS7 MTP Link No.0 for SS7_Normal on the page.
3. Add the SS7 Link Set
Click SS7 -->SS7 Link Set, and add one SS7 Link Set No.0, which is included in MTP Link No.0.
4. Add the CIC
Click SS7--> SS7 Circuit, and add CIC information.
Configurations When There’s No Real Link SS7
1. Add the SS7 Trunk
Click SS7 --> SS7 Trunk, and add SS7 trunk SS7_Logic for port1, the Link Set No. is configured as Link Set No.0 (which has been set above steps). Since the SS7 trunk of port 1 has no real SL and it only has logical SL, it needs to share other port’s SL through link set.
Note: The OPC/DPC is 9299/9294 (in the format of Dec), and it needs to switch to the format of Hex
Dec 9299 -> Hex 2453
Dec 9294 -> Hex 244E
2. Add the SS7 MTP Link
Click SS7 --> SS7 MTP Link, and add the SS7 MTP link No.1 for port. Link Mode is set as Logical.
3. Add the CIC
Click SS7 --> SS7 Circuit, and add CIC information for both SS7 trunks.
