Tin Oo, the vice-chairman of Ms Suu Kyi's National League for Democracy (NLD), said that she was hopeful of being freed after 19 months and that talks with the military junta ruling Burma would soon produce a political breakthrough on other issues.
He said that Ms Suu Kyi told him to inform the media that the developments will be seen within days.
Ms Suu Kyi was put under house arrest in September 2000 after she disobeyed an order forbidding her to leave the Burmese capital Rangoon. She had previously been under house arrest from 1989 to 1995.
The NLD won 82% of the vote in the 1990 general election but the State Law and Order Restoration Council (Slorc) refused to recognise the result. The junta had re-established military rule in September 1988 after a two-month pro-democracy uprising that followed the retirement of the repressive former military leader, General Ne Win.
The junta routinely harasses and arrests NLD supporters and has one of the worst human rights records in Asia, which includes a violation of its own ban on forced labour.
But Burma - renamed Myanmar by Slorc in 1989 - has recently been rife with expectations that Ms Suu Kyi would be freed following the visit last month of a special UN envoy Razali Ismail, sent to broker peace talks.
And in a rare move foreign journalists were today allowed into the country, strengthening speculation about Ms Suu Kyi's release.
The NLD's telephone connections to their headquarters in Rangoon were also restored.
Party officials wrote out the restored telephone number on a white board at the entrance, urging people who want to see Ms Suu Kyi to call the headquarters first.
Inside, party workers prepared arm bands with strips of red fabric and the NLD logos - a running peacock - on straw hats.
The international community says Ms Suu Kyi's release is crucial if the Burma's military rulers - who now call themselves the State Peace and Development Council - want to show their seriousness about political change ahead of restoring democracy in the country, which has been under repressive military dictatorships for the last 40 years.
But, even if Ms Suu Kyi is released, democracy is unlikely to return to Burma overnight. It is also unclear how much political freedom she would be allowed and whether the military junta would establish a true reconciliation with the pro-democracy supporters.
It currently holds at least 1,000 political prisoners.
