Edinburgh have signed Andy Titterrell on a one-year deal.
The British and Irish Lion, 31, has been recruited as cover for injured hooker Steven Lawrie, who has been sidelined with a knee injury since December.
Edinburgh head coach Michael Bradley said: "We're very happy to have secured the services of such an experienced campaigner. Andy has competed at the highest level for club and country and will offer an exciting option at number two to Ross Ford while we continue to bring on young Alun Walker."
Titterrell said: "I'm absolutely delighted with the opportunity to represent a club like Edinburgh Rugby in the RaboDirect PRO12 and also the Heineken Cup, as we seek to build on the club's great run in the competition last season.
"We've some big pre-season matches coming up against English opposition, who I know well.
"So my focus is really honed in on getting to know the guys in the squad, settling into the training routine at Murrayfield, and using these matches as a springboard to a big year with the club."