with respect to payments from NBN, the one off ones which end at...

with respect to payments from NBN, the one off ones which end at completion of NBN rollouts help top up the divvie in the short term.

Quote TLS:
“With the implementation of this new dividend policy, we expect total dividends in respect of FY18 to be 22 cents per share fully-franked, including both ordinary and special dividends.”

The recurring ones,(NBN paying rent) will be used for on market and off market share buybacks and debt reduction.

Quote TLS:
Mr Penn said recurring receipts for access to Telstra’s extensive infrastructure were expected to grow to just under $1 billion annually by the end of the nbn migration period.

“If we were to proceed with these plans, it would involve approximately 40 percent of the total receipts that are expected, representing the already locked in receipts for fibre and exchanges,” Mr Penn said.

“The scale of the proposed transaction is approximately $5 − 5.5 billion4 with Telstra to retain some equity interest. Our intention would be to use the proceeds to reduce debt by around $1 billion, with the balance to support a capital management program to enhance shareholder returns, most likely through a series of on and off market buy-backs.