Signaling System 7 (SS7) OffNet Order Guide

Signaling System 7 (SS7) OffNet Order Guide


The purpose of this document is to assist carriers with ordering Signaling System 7 (SS7) OffNet service.

SS7 OffNet service provides an SS7 customer the option to transport call-signaling information on routes defined by Origination Point Codes and Destination Point Codes between Verizon's SS7 network and a third party SS7 network interconnected to Verizon. In this situation, the customer's voice traffic is carried entirely by another carrier's network(s) and bypasses the Verizon voice network on the applicable OffNet route (i.e., the point codes at both the originating and terminating end office are non-Verizon point codes).

As a condition to receiving the SS7 OffNet service, the customer must interconnect with Verizon's SS7 network by purchasing SS7 interconnection services in accordance with Verizon's Tariff FCC 1 or FCC 11 for former BA territories and FCC 14 for former GTE territories before OffNet service will be provided. The service is subject to availability at Verizon's sole discretion.

SS7 OffNet service is provided exclusively through an Agreement (the "Agreement") between Verizon and the SS7 customer.

> Read more about SS7 Interconnection and Transport service.


An Agreement must be on file with Verizon before any ASR for SS7 OffNet service will be accepted. Customer must have already established SS7 interconnection (i.e. links) with Verizon before SS7 OffNet orders are processed. These links will already be billing in CABS identified by TSC codes.

When one or the other customer has an existing SS7 OffNet Reciprocal agreement with Verizon, the customer with a reciprocal agreement is also required to issue an ASR.

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The industry standard ASR form should be used to submit all SS7 OffNet order activity. Customer MUST include the OffNet SPEC code, ONSXXX, on the ASR for OffNet.

The first three characters of the PON number must be the CCNA of the customer submitting the ASR and both ASRs must reference each other via use of the RPON field. See example immediately below:

  Customer CCNAPON Field EntryRPON Field Entry
First Customer ASR ABCABC12345XYZ12345
Second Customer ASRXYZXYZ12345ABC12345

Only one route (OPC & DPC combination) per ASR will be accepted. That is, a separate ASR must be submitted for each individual SS7 OffNet route. OPC, by definition, belongs to the customer issuing the ASR.

SS7 OffNet ASRs should be submitted to the same Verizon ICSC that receives the SS7 customer's switched and special access ASRs. For SS7 customers who do not have switched or special access services from Verizon, SS7 OffNet ASRs should be submitted to ICSC code GT10 for former GTE.

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Completing Your Order

An OffNet route is defined by OPC to DPC. Both the OPC and DPC are non-Verizon point codes. OPC, by definition, belongs to the customer issuing the ASR. All Verizon East (fBA) point codes begin with either 246 or 247. All Verizon West (fGTE) point codes begin with 240.

A separate ASR will be required from each SS7 customers (Customer A and Customer B), shown in the diagrams below, whose networks will be interconnected with Verizon's STPs via the OffNet route being ordered.

Since two ASRs are necessary for SS7 OffNet provisioning, Verizon will not consider the RPON requirements of the ASRs fulfilled until both related ASRs are received by Verizon, and both ASRs are deemed to be error-free. Therefore, the standard ordering interval of 30 calendar days will start at the date and time when Verizon receives both related ASRs and deems them to be error-free. Verizon shall have sole discretion to make the determination as to whether the ASR is error free.

Once an SS7 OffNet ASR is received from one SS7 customer on a particular OffNet route, the second SS7 customer on that route will have 10 calendar days to submit their SS7 OffNet ASR. If the "second" ASR is not received in this time period, the original ASR will be cancelled, and both SS7 customers will have to submit new ASRs to get the SS7 OffNet route established.

Provisioning of an Offnet route will not begin until Verizon receives both SS7 customer's ASRs. Both customers must use the same desired due date ("DDD").

The entire network routing information must be provided from OPC (A location) to DPC (Z location) in the SSPC field on the Trunking Form (ICFB2 screen). End Office A may be connected to Verizon STP pair (1) through a non-Verizon STP pair via "B/D" links, see Diagram 1 below or (2) directly via "A" links, See Diagram 2 below.

Subject to customer meeting the terms and conditions of this ordering process, the standard firm order confirmation interval for SS7 OffNet ASR ordering will be ten (10) business days from the date that an error-free ASR is received by Verizon in accordance with the guidelines and requirements set forth herein.

Subject to customer meeting the terms and conditions of this ordering process, the standard installation interval for an SS7 OffNet route will continue to be thirty (30) calendar days. Any orders received with a DDD of less than 30 calendar days that Verizon confirms back to the SS7 customer will be assessed an SS7 OffNet expedite charge per the Agreement. The expedite charge is in addition to all other applicable SS7 OffNet charges.

All OffNet ASRs will be either A's or D's (PCACT field). If customer wants to make a change, 2 ASRs are required, one to delete the OffNet route and a second to add the new OPC/DPC.

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These diagrams are designed to pictorially show how an SS7 OffNet route in the network is configured.

ASR Trunking Form SSPC Example - End Office Connected to Non-VZ STP Pair

ASR Trunking Form SSPC Example - End Office Directly Connected to Verizon STP Pair

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