Appendices

J3 (previously 'Generic Data J-1DN')

This ISDN ordering code supports:

2B Service,

alternate voice and data on one B, data only on other B channel, and

One directory number.

J3 is not available on the Northern Telecom switch. Since two directory numbers are required for 2B operation, use J2.

Capability S (previously 'Generic Data M')

This ISDN ordering code is the recommended IOC since it supports the most features for voice and data applications. However, ISDN tariffs in some areas may warrant ordering codes with fewer features (e.g., where there is an additional monthly charge for having voice service on both B channels). If yours is a data only application, you may find Capability R more cost-effective.

Capability S supports:

2B Service,

alternating voice/data on each B channel, and

Two directory numbers.

Applications for Capability S include:

115.2K or 128K bps data,

56K/64K bps data with voice or modem support, and

Generic 1 15.2K/1 28K bps data transfer applications (including remote access and LAN/WAN connectivity and telecommuting).

M5 (previously 'Generic Data M-1DN')

This ISDN ordering code supports:

2B Service,

alternate voice/data on each B channel, and

One directory number.

M5 is not available for services provided with Northern Telecom or AT&T switches. Since two directory numbers are required for 2B operation, use Capability S.

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Multi Tech Equipment MTA128ST manual J3 previously Generic Data J-1DN, Capability S previously Generic Data M