Wales caretaker manager Brian Flynn has asked Robbie Savage to come out of international retirement.
Flynn revealed that he has spoken with the Derby midfielder, who was one of the players who quit the national team during John Toshack's reign.
While the 35-year-old was not a contender for Flynn's first squad ahead of their crucial upcoming Euro 2012 qualifiers, a subsequent return to Wales colours cannot be ruled out.
Flynn said: "I have spoken to Robbie Savage and explained the situation to him.
"He offered his services. After these two games, who knows what might happen?
"We will sit down and talk again, and I am keen to do that.
"My door is open and my phone is on 24 hours."
Meanwhile, Danny Collins has been recalled to the squad by Flynn.
The Stoke defender did not see eye to eye with Toshack and has not played for his country since August 2007.
Collins, 30, is the only surprise name in Flynn's first squad after Simon Davies ruled out a return to the international arena.
Flynn said there had been no contact with the Fulham midfield stalwart, although he was delighted to welcome back Collins.
Flynn said: "I called in to see him (Tony Pulis) at the training ground and I bumped into Danny. We had a chat, and he assured me he hadn't retired (from international football).
"He is playing in the Premier League in a good Stoke side and holding his place down.
"I am delighted he is in the squad with us for these two games."
Wales face Bulgaria in Cardiff next Friday before travelling to Switzerland four days later.
Captain Craig Bellamy will miss the double-header due to an ongoing knee injury which has kept him out of action for Cardiff.
Two uncapped goalkeepers, David Cornell of Swansea and Watford's Jonathan Bond, have also been included in a 24-man party alongside Wayne Hennessey and Boaz Myhill.
Flynn impressed in charge of the national Under 21 side, agonisingly missing out on the Uefa Under 21 Championship play-offs in early September.
The former Wrexham and Swansea boss took over after Toshack stood down in the wake of last month's 1-0 defeat in Montenegro.
Bond (Watford), Cornell (Swansea), Hennessey (Wolves), Myhill (West Brom), D Collins (Stoke), J Collins (Aston Villa), Eardley (Blackpool), Gabbidon (West Ham), Gunter (Nottm Forest), Ribeiro (Bristol City), Ricketts (Bolton), Williams (Swansea), Allen (Swansea), Bale (Tottenham), Edwards (Wolves), King (Leicester), Ledley (Celtic), Stock (Doncaster), Vaughan (Blackpool), Church (Reading), Earnshaw (Nottm Forest), Evans (Sheff Utd), Morison (Millwall), Robson-Kanu (Reading).