• GBP/USD up 0.3% in Asia on signs stalled US-Iran peace talks may resume

• Trump calls off bombing, Iran says it will halt strikes as long as US does

• GBP opened at 1.3343 from Friday's 1.3323 close, rallies to a 1.3363 high

• Risk rallies as U.S. crude falls 4.5%; S&P 500 futures + 0.75%, boosts GBP

• Gains capped on caution ahead of a busy week for risk events

• Fed, BoE, BOJ rate decisions and a packed data calendar this week

• BoE to hold steady on Thu and this year but Iran war inflation risks persist

• Support 1.3325-30, 1.3299, 61.8 of June-July rally; resistance 1.3390-1.3400

• Friday range 1.3306-1.3348, Asia 1.3342-1.3363
GBP:

(Krishna Kumar is a Reuters market analyst. The views expressed are his own.)