PTN（Packet Transport Network）
- Packet Transport Network PTN RLT7700
- 50 Sets
- Negotiable
- Packet Transport Network PTN RLT7500B
- 50 Sets
- Negotiable
- Packet Transport Network PTN RLT7500A
- 50 Sets
- Negotiable
- Packet Transport Network PTN RLT7300D
- 50 Sets
- Negotiable
- Packet Transport Network PTN RLT7300C
- 50 Sets
- Negotiable
- Packet Transport Network PTN RLT7300B
- 50 Sets
- Negotiable
- Packet Transport Network PTN RLT7300A
- 50 Sets
- Negotiable